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  89   <div class="section" id="index-0">
  90 <span id="id1"></span><h1>算術関数<a class="headerlink" href="#index-0" title="このヘッドラインへのパーマリンク">¶</a></h1>
  91 <p>算術関数の用法を学びます。</p>
  92 <div class="section" id="index-1">
  93 <span id="id2"></span><h2>関数のリスト<a class="headerlink" href="#index-1" title="このヘッドラインへのパーマリンク">¶</a></h2>
  94 <p>このような算術関数が Ring にあります。</p>
  95 <table border="1" class="docutils">
  96 <colgroup>
  97 <col width="14%" />
  98 <col width="86%" />
  99 </colgroup>
 100 <thead valign="bottom">
 101 <tr class="row-odd"><th class="head">関数</th>
 102 <th class="head">説明</th>
 103 </tr>
 104 </thead>
 105 <tbody valign="top">
 106 <tr class="row-even"><td>sin(x)</td>
 107 <td>ラジアン x のサイン角度を返します。</td>
 108 </tr>
 109 <tr class="row-odd"><td>cos(x)</td>
 110 <td>ラジアン x のコサイン角度を返します。</td>
 111 </tr>
 112 <tr class="row-even"><td>tan(x)</td>
 113 <td>ラジアン x のタンジェント角度を返します。</td>
 114 </tr>
 115 <tr class="row-odd"><td>asin(x)</td>
 116 <td>ラジアン表記によるアークサインの x の主値を返します。</td>
 117 </tr>
 118 <tr class="row-even"><td>acos(x)</td>
 119 <td>ラジアン表記によるアークコサインの x の主値を返します。</td>
 120 </tr>
 121 <tr class="row-odd"><td>atan(x)</td>
 122 <td>ラジアン表記によるアークタンジェントの x の主値を返します。</td>
 123 </tr>
 124 <tr class="row-even"><td>atan2(y,x)</td>
 125 <td>ラジアン [-pi,+pi] の区間にある、ラジアン表記によるアークタンジェントの x の主値を返します。</td>
 126 </tr>
 127 <tr class="row-odd"><td>sinh(x)</td>
 128 <td>ラジアン x の双曲線サインを返します。</td>
 129 </tr>
 130 <tr class="row-even"><td>cosh(x)</td>
 131 <td>ラジアン x の双曲線コサインを返します。</td>
 132 </tr>
 133 <tr class="row-odd"><td>tanh(x)</td>
 134 <td>ラジアン x の双曲線タンジェントを返します。</td>
 135 </tr>
 136 <tr class="row-even"><td>exp(x)</td>
 137 <td>e の x 乗値を返します。</td>
 138 </tr>
 139 <tr class="row-odd"><td>log(x)</td>
 140 <td>x の常用対数を返します。</td>
 141 </tr>
 142 <tr class="row-even"><td>log10(x)</td>
 143 <td>x の常用対数を返します (10 を底とする対数)。</td>
 144 </tr>
 145 <tr class="row-odd"><td>ceil(x)</td>
 146 <td>x 以上の最小整数値を返します。</td>
 147 </tr>
 148 <tr class="row-even"><td>floor(x)</td>
 149 <td>x 以下の最大整数値を返します。</td>
 150 </tr>
 151 <tr class="row-odd"><td>fabs(x)</td>
 152 <td>x の絶対値を返します。</td>
 153 </tr>
 154 <tr class="row-even"><td>pow(x,y)</td>
 155 <td>x に対する y の累乗を返します。</td>
 156 </tr>
 157 <tr class="row-odd"><td>sqrt(x)</td>
 158 <td>x の平方根を返します。</td>
 159 </tr>
 160 <tr class="row-even"><td>random(x)</td>
 161 <td>[0,x] の範囲による乱数を返します。</td>
 162 </tr>
 163 <tr class="row-odd"><td>srandom(x)</td>
 164 <td>乱数生成器を初期化します。</td>
 165 </tr>
 166 <tr class="row-even"><td>unsigned(n,n,c)</td>
 167 <td>符号なし数値で演算を実行します。</td>
 168 </tr>
 169 <tr class="row-odd"><td>decimals(n)</td>
 170 <td>浮動小数点数、倍精度数の小数点の後にある小数点以下の数値を決定します。</td>
 171 </tr>
 172 </tbody>
 173 </table>
 174 </div>
 175 <div class="section" id="index-2">
 176 <span id="id3"></span><h2>用例<a class="headerlink" href="#index-2" title="このヘッドラインへのパーマリンク">¶</a></h2>
 177 <div class="highlight-ring"><div class="highlight"><pre><span class="k">See</span> <span class="s">&quot;Mathematical Functions&quot;</span> <span class="o">+</span> <span class="n">nl</span>
 178 <span class="k">See</span> <span class="s">&quot;Sin(0) = &quot;</span> <span class="o">+</span> <span class="n">sin</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 179 <span class="k">See</span> <span class="s">&quot;Sin(90) radians = &quot;</span> <span class="o">+</span> <span class="n">sin</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 180 <span class="k">See</span> <span class="s">&quot;Sin(90) degree = &quot;</span> <span class="o">+</span> <span class="n">sin</span><span class="p">(</span><span class="mi">90</span><span class="o">*</span><span class="mf">3.14</span><span class="o">/</span><span class="mi">180</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 181
 182 <span class="k">See</span> <span class="s">&quot;Cos(0) = &quot;</span> <span class="o">+</span> <span class="n">cos</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 183 <span class="k">See</span> <span class="s">&quot;Cos(90) radians = &quot;</span> <span class="o">+</span> <span class="n">cos</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 184 <span class="k">See</span> <span class="s">&quot;Cos(90) degree = &quot;</span> <span class="o">+</span> <span class="n">cos</span><span class="p">(</span><span class="mi">90</span><span class="o">*</span><span class="mf">3.14</span><span class="o">/</span><span class="mi">180</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 185
 186 <span class="k">See</span> <span class="s">&quot;Tan(0) = &quot;</span> <span class="o">+</span> <span class="n">tan</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 187 <span class="k">See</span> <span class="s">&quot;Tan(90) radians = &quot;</span> <span class="o">+</span> <span class="n">tan</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 188 <span class="k">See</span> <span class="s">&quot;Tan(90) degree = &quot;</span> <span class="o">+</span> <span class="n">tan</span><span class="p">(</span><span class="mi">90</span><span class="o">*</span><span class="mf">3.14</span><span class="o">/</span><span class="mi">180</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 189
 190 <span class="k">See</span> <span class="s">&quot;asin(0) = &quot;</span> <span class="o">+</span> <span class="n">asin</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 191 <span class="k">See</span> <span class="s">&quot;acos(0) = &quot;</span> <span class="o">+</span> <span class="n">acos</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 192 <span class="k">See</span> <span class="s">&quot;atan(0) = &quot;</span> <span class="o">+</span> <span class="n">atan</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 193 <span class="k">See</span> <span class="s">&quot;atan2(1,1) = &quot;</span> <span class="o">+</span> <span class="n">atan2</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 194
 195 <span class="k">See</span> <span class="s">&quot;sinh(0) = &quot;</span> <span class="o">+</span> <span class="n">sinh</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 196 <span class="k">See</span> <span class="s">&quot;sinh(1) = &quot;</span> <span class="o">+</span> <span class="n">sinh</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 197 <span class="k">See</span> <span class="s">&quot;cosh(0) = &quot;</span> <span class="o">+</span> <span class="n">cosh</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 198 <span class="k">See</span> <span class="s">&quot;cosh(1) = &quot;</span> <span class="o">+</span> <span class="n">cosh</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 199 <span class="k">See</span> <span class="s">&quot;tanh(0) = &quot;</span> <span class="o">+</span> <span class="n">tanh</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 200 <span class="k">See</span> <span class="s">&quot;tanh(1) = &quot;</span> <span class="o">+</span> <span class="n">tanh</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 201
 202 <span class="k">See</span> <span class="s">&quot;exp(0) = &quot;</span> <span class="o">+</span> <span class="n">exp</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 203 <span class="k">See</span> <span class="s">&quot;exp(1) = &quot;</span> <span class="o">+</span> <span class="n">exp</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 204 <span class="k">See</span> <span class="s">&quot;log(1) = &quot;</span> <span class="o">+</span> <span class="n">log</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 205 <span class="k">See</span> <span class="s">&quot;log(2) = &quot;</span> <span class="o">+</span> <span class="n">log</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 206 <span class="k">See</span> <span class="s">&quot;log10(1) = &quot;</span> <span class="o">+</span> <span class="n">log10</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 207 <span class="k">See</span> <span class="s">&quot;log10(2) = &quot;</span> <span class="o">+</span> <span class="n">log10</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 208 <span class="k">See</span> <span class="s">&quot;log10(10) = &quot;</span> <span class="o">+</span> <span class="n">log10</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 209
 210 <span class="k">See</span> <span class="s">&quot;Ceil(1.12) = &quot;</span> <span class="o">+</span> <span class="n">Ceil</span><span class="p">(</span><span class="mf">1.12</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 211 <span class="k">See</span> <span class="s">&quot;Ceil(1.72) = &quot;</span> <span class="o">+</span> <span class="n">Ceil</span><span class="p">(</span><span class="mf">1.72</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 212
 213 <span class="k">See</span> <span class="s">&quot;Floor(1.12) = &quot;</span> <span class="o">+</span> <span class="n">floor</span><span class="p">(</span><span class="mf">1.12</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 214 <span class="k">See</span> <span class="s">&quot;Floor(1.72) = &quot;</span> <span class="o">+</span> <span class="n">floor</span><span class="p">(</span><span class="mf">1.72</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 215
 216 <span class="k">See</span> <span class="s">&quot;fabs(1.12) = &quot;</span> <span class="o">+</span> <span class="n">fabs</span><span class="p">(</span><span class="mf">1.12</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 217 <span class="k">See</span> <span class="s">&quot;fabs(1.72) = &quot;</span> <span class="o">+</span> <span class="n">fabs</span><span class="p">(</span><span class="mf">1.72</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 218
 219 <span class="k">See</span> <span class="s">&quot;pow(2,3) = &quot;</span> <span class="o">+</span> <span class="n">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 220
 221 <span class="k">see</span> <span class="s">&quot;sqrt(16) = &quot;</span> <span class="o">+</span> <span class="n">sqrt</span><span class="p">(</span><span class="mi">16</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 222 </pre></div>
 223 </div>
 224 <p>プログラムの出力:</p>
 225 <div class="highlight-ring"><div class="highlight"><pre><span class="n">Mathematical</span> <span class="n">Functions</span>
 226 <span class="n">Sin</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 227 <span class="n">Sin</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="n">radians</span> <span class="o">=</span> <span class="mf">0.89</span>
 228 <span class="n">Sin</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="n">degree</span> <span class="o">=</span> <span class="mf">1.00</span>
 229 <span class="n">Cos</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">1</span>
 230 <span class="n">Cos</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="n">radians</span> <span class="o">=</span> <span class="o">-</span><span class="mf">0.45</span>
 231 <span class="n">Cos</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="n">degree</span> <span class="o">=</span> <span class="mf">0.00</span>
 232 <span class="n">Tan</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 233 <span class="n">Tan</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="n">radians</span> <span class="o">=</span> <span class="o">-</span><span class="mf">2.00</span>
 234 <span class="n">Tan</span><span class="p">(</span><span class="mi">90</span><span class="p">)</span> <span class="n">degree</span> <span class="o">=</span> <span class="mf">1255.77</span>
 235 <span class="n">asin</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 236 <span class="n">acos</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mf">1.57</span>
 237 <span class="n">atan</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 238 <span class="n">atan2</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mf">0.79</span>
 239 <span class="n">sinh</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 240 <span class="n">sinh</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mf">1.18</span>
 241 <span class="n">cosh</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">1</span>
 242 <span class="n">cosh</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mf">1.54</span>
 243 <span class="n">tanh</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 244 <span class="n">tanh</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mf">0.76</span>
 245 <span class="n">exp</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="o">=</span> <span class="mi">1</span>
 246 <span class="n">exp</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mf">2.72</span>
 247 <span class="n">log</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 248 <span class="n">log</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">=</span> <span class="mf">0.69</span>
 249 <span class="n">log10</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">=</span> <span class="mi">0</span>
 250 <span class="n">log10</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">=</span> <span class="mf">0.30</span>
 251 <span class="n">log10</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span> <span class="o">=</span> <span class="mi">1</span>
 252 <span class="n">Ceil</span><span class="p">(</span><span class="mf">1.12</span><span class="p">)</span> <span class="o">=</span> <span class="mi">2</span>
 253 <span class="n">Ceil</span><span class="p">(</span><span class="mf">1.72</span><span class="p">)</span> <span class="o">=</span> <span class="mi">2</span>
 254 <span class="n">Floor</span><span class="p">(</span><span class="mf">1.12</span><span class="p">)</span> <span class="o">=</span> <span class="mi">1</span>
 255 <span class="n">Floor</span><span class="p">(</span><span class="mf">1.72</span><span class="p">)</span> <span class="o">=</span> <span class="mi">1</span>
 256 <span class="n">fabs</span><span class="p">(</span><span class="mf">1.12</span><span class="p">)</span> <span class="o">=</span> <span class="mf">1.12</span>
 257 <span class="n">fabs</span><span class="p">(</span><span class="mf">1.72</span><span class="p">)</span> <span class="o">=</span> <span class="mf">1.72</span>
 258 <span class="n">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span> <span class="o">=</span> <span class="mi">8</span>
 259 <span class="n">sqrt</span><span class="p">(</span><span class="mi">16</span><span class="p">)</span> <span class="o">=</span> <span class="mi">4</span>
 260 </pre></div>
 261 </div>
 262 </div>
 263 <div class="section" id="random">
 264 <span id="index-3"></span><h2>Random() 関数<a class="headerlink" href="#random" title="このヘッドラインへのパーマリンク">¶</a></h2>
 265 <p>Random() 関数は乱数を生成します。また最大値の指定もできます (オプション扱い)。</p>
 266 <p>文法:</p>
 267 <div class="highlight-ring"><div class="highlight"><pre>Random(x) ---&gt; [0,x] の範囲による乱数。
 268 </pre></div>
 269 </div>
 270 <p>用例:</p>
 271 <div class="highlight-ring"><div class="highlight"><pre><span class="k">for</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">1</span> <span class="k">to</span> <span class="mi">20</span>
 272         <span class="k">see</span>  <span class="s">&quot;Random number : &quot;</span> <span class="o">+</span> <span class="n">random</span><span class="p">()</span> <span class="o">+</span> <span class="n">nl</span> <span class="o">+</span>
 273              <span class="s">&quot;Random number Max (100) : &quot;</span> <span class="o">+</span> <span class="n">random</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 274 <span class="k">next</span>
 275 </pre></div>
 276 </div>
 277 <p>プログラムの出力:</p>
 278 <div class="highlight-ring"><div class="highlight"><pre><span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">31881</span>
 279 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">80</span>
 280 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">5573</span>
 281 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">63</span>
 282 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">2231</span>
 283 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">43</span>
 284 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">12946</span>
 285 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">39</span>
 286 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">22934</span>
 287 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">48</span>
 288 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">4690</span>
 289 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">52</span>
 290 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">13196</span>
 291 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">65</span>
 292 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">30390</span>
 293 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">87</span>
 294 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">4327</span>
 295 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">77</span>
 296 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">12456</span>
 297 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">17</span>
 298 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">28438</span>
 299 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">13</span>
 300 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">30503</span>
 301 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">6</span>
 302 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">31769</span>
 303 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">94</span>
 304 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">8274</span>
 305 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">65</span>
 306 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">14390</span>
 307 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">90</span>
 308 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">28866</span>
 309 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">12</span>
 310 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">24558</span>
 311 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">70</span>
 312 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">29981</span>
 313 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">77</span>
 314 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">12847</span>
 315 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">63</span>
 316 <span class="n">Random</span> <span class="n">number</span> <span class="p">:</span> <span class="mi">6632</span>
 317 <span class="n">Random</span> <span class="n">number</span> <span class="n">Max</span> <span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="p">:</span> <span class="mi">60</span>
 318 </pre></div>
 319 </div>
 320 </div>
 321 <div class="section" id="srandom">
 322 <span id="index-4"></span><h2>SRandom() 関数<a class="headerlink" href="#srandom" title="このヘッドラインへのパーマリンク">¶</a></h2>
 323 <p>SRandom() 関数は乱数生成器を初期化します。</p>
 324 <p>文法:</p>
 325 <div class="highlight-ring"><div class="highlight"><pre><span class="n">SRandom</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
 326 </pre></div>
 327 </div>
 328 </div>
 329 <div class="section" id="unsigned">
 330 <span id="index-5"></span><h2>Unsigned() 関数<a class="headerlink" href="#unsigned" title="このヘッドラインへのパーマリンク">¶</a></h2>
 331 <p>Unsigned() 関数により符号なし整数を使えます。</p>
 332 <p>文法:</p>
 333 <div class="highlight-ring"><div class="highlight"><pre>Unsigned(nNum1,nNum2,cOperator)
 334         --&gt; nNum1,nNum2 における cOperator の演算結果。
 335 </pre></div>
 336 </div>
 337 <p>用例:</p>
 338 <div class="highlight-ring"><div class="highlight"><pre><span class="k">see</span> <span class="n">oat_hash</span><span class="p">(</span><span class="s">&quot;hello&quot;</span><span class="p">)</span> <span class="o">+</span> <span class="n">nl</span>
 339
 340 <span class="c"># ジェンキンス法によるハッシュ関数 - https://en.wikipedia.org/wiki/Jenkins_hash_function</span>
 341 <span class="k">func</span> <span class="n">oat_hash</span> <span class="n">cKey</span>
 342         <span class="n">h</span> <span class="o">=</span> <span class="mi">0</span>
 343         <span class="k">for</span> <span class="n">x</span> <span class="k">in</span> <span class="n">cKey</span>
 344                 <span class="n">h</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="n">ascii</span><span class="p">(</span><span class="n">x</span><span class="p">),</span><span class="s">&quot;+&quot;</span><span class="p">)</span>
 345                 <span class="n">h</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="mi">10</span><span class="p">,</span><span class="s">&quot;&lt;&lt;&quot;</span><span class="p">),</span><span class="s">&quot;+&quot;</span><span class="p">)</span>
 346                 <span class="n">r</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="mi">6</span><span class="p">,</span><span class="s">&quot;&gt;&gt;&quot;</span><span class="p">)</span>
 347                 <span class="n">h</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="n">r</span><span class="p">,</span><span class="s">&quot;^&quot;</span><span class="p">)</span>
 348         <span class="k">next</span>
 349         <span class="n">h</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="s">&quot;&lt;&lt;&quot;</span><span class="p">),</span><span class="s">&quot;+&quot;</span><span class="p">)</span>
 350         <span class="n">h</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="mi">11</span><span class="p">,</span><span class="s">&quot;&gt;&gt;&quot;</span><span class="p">),</span><span class="s">&quot;^&quot;</span><span class="p">)</span>
 351         <span class="n">h</span> <span class="o">=</span> <span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="n">unsigned</span><span class="p">(</span><span class="n">h</span><span class="p">,</span><span class="mi">15</span><span class="p">,</span><span class="s">&quot;&lt;&lt;&quot;</span><span class="p">),</span><span class="s">&quot;+&quot;</span><span class="p">)</span>
 352         <span class="k">return</span> <span class="n">h</span>
 353 </pre></div>
 354 </div>
 355 <p>実行結果:</p>
 356 <div class="highlight-ring"><div class="highlight"><pre><span class="mf">3372029979.00</span>
 357 </pre></div>
 358 </div>
 359 </div>
 360 <div class="section" id="decimals">
 361 <span id="index-6"></span><h2>Decimals() 関数<a class="headerlink" href="#decimals" title="このヘッドラインへのパーマリンク">¶</a></h2>
 362 <p>Decimals() により浮動小数点数、倍精度数の小数点の後にある小数点以下の数値を決定できます。</p>
 363 <p>文法:</p>
 364 <div class="highlight-ring"><div class="highlight"><pre><span class="n">Decimals</span><span class="p">(</span><span class="n">nDecimalsCount</span><span class="p">)</span>
 365 </pre></div>
 366 </div>
 367 <p>用例:</p>
 368 <div class="highlight-ring"><div class="highlight"><pre><span class="n">x</span> <span class="o">=</span> <span class="mf">1.1234567890123</span>
 369 <span class="k">for</span> <span class="n">d</span> <span class="o">=</span> <span class="mi">0</span> <span class="k">to</span> <span class="mi">14</span>
 370         <span class="n">decimals</span><span class="p">(</span><span class="n">d</span><span class="p">)</span>
 371         <span class="k">see</span> <span class="n">x</span> <span class="o">+</span> <span class="n">nl</span>
 372 <span class="k">next</span>
 373 </pre></div>
 374 </div>
 375 <p>実行結果:</p>
 376 <div class="highlight-ring"><div class="highlight"><pre><span class="mi">1</span>
 377 <span class="mf">1.1</span>
 378 <span class="mf">1.12</span>
 379 <span class="mf">1.123</span>
 380 <span class="mf">1.1235</span>
 381 <span class="mf">1.12346</span>
 382 <span class="mf">1.123457</span>
 383 <span class="mf">1.1234568</span>
 384 <span class="mf">1.12345679</span>
 385 <span class="mf">1.123456789</span>
 386 <span class="mf">1.1234567890</span>
 387 <span class="mf">1.12345678901</span>
 388 <span class="mf">1.123456789012</span>
 389 <span class="mf">1.1234567890123</span>
 390 <span class="mf">1.12345678901230</span>
 391 </pre></div>
 392 </div>
 393 </div>
 394 <div class="section" id="index-7">
 395 <span id="id4"></span><h2>数値の桁間に _ を使うには<a class="headerlink" href="#index-7" title="このヘッドラインへのパーマリンク">¶</a></h2>
 396 <p>数値の桁間に‘_’を使うことができます。</p>
 397 <p>用例:</p>
 398 <div class="highlight-ring"><div class="highlight"><pre><span class="n">x</span> <span class="o">=</span> <span class="mi">1_000_000</span>
 399 <span class="k">see</span> <span class="n">type</span><span class="p">(</span><span class="n">x</span><span class="p">)</span><span class="o">+</span><span class="n">nl</span>
 400 <span class="k">see</span> <span class="n">x</span><span class="o">+</span><span class="mi">1</span><span class="o">+</span><span class="n">nl</span>
 401 </pre></div>
 402 </div>
 403 <p>実行結果:</p>
 404 <div class="highlight-ring"><div class="highlight"><pre><span class="n">NUMBER</span>
 405 <span class="mi">100000001</span>
 406 </pre></div>
 407 </div>
 408 </div>
 409 <div class="section" id="f">
 410 <span id="index-8"></span><h2>数値の末尾に f を使うには<a class="headerlink" href="#f" title="このヘッドラインへのパーマリンク">¶</a></h2>
 411 <p>数値の末尾に‘f’を使うことができます。</p>
 412 <p>用例:</p>
 413 <div class="highlight-ring"><div class="highlight"><pre>x = 19.99f
 414 see type(x) + nl
 415 </pre></div>
 416 </div>
 417 <p>実行結果:</p>
 418 <div class="highlight-ring"><div class="highlight"><pre><span class="n">NUMBER</span>
 419 </pre></div>
 420 </div>
 421 </div>
 422 </div>
 423
 424
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 429         <div class="sphinxsidebarwrapper"><h3>ページの内容</h3>
 430 <ul>
 431 <li><a class="reference internal" href="#">算術関数</a><ul>
 432 <li><a class="reference internal" href="#index-1">関数のリスト</a></li>
 433 <li><a class="reference internal" href="#index-2">用例</a></li>
 434 <li><a class="reference internal" href="#random">Random() 関数</a></li>
 435 <li><a class="reference internal" href="#srandom">SRandom() 関数</a></li>
 436 <li><a class="reference internal" href="#unsigned">Unsigned() 関数</a></li>
 437 <li><a class="reference internal" href="#decimals">Decimals() 関数</a></li>
 438 <li><a class="reference internal" href="#index-7">数値の桁間に _ を使うには</a></li>
 439 <li><a class="reference internal" href="#f">数値の末尾に f を使うには</a></li>
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