- 
from notebook_preamble import J, V, define
+  
from notebook_preamble import J, V, define
 

 

 

@@ -100,11 +100,11 @@ the variables:

The three arguments are to the left, so we can “chop off” everything to the right and say it’s the definition of the quadratic function:

-
define('quadratic == over [[[neg] dupdip sqr 4] dipd * * - sqrt pm] dip 2 * [/] cons app2')
+
define('quadratic == over [[[neg] dupdip sqr 4] dipd * * - sqrt pm] dip 2 * [/] cons app2')
 

 

 
Let’s try it out:

-
J('3 1 1 quadratic')
+
J('3 1 1 quadratic')
 

 

 
-0.3819660112501051 -2.618033988749895
@@ -114,7 +114,7 @@ the right and say it’s the definition of the dip and dipd combinators building the main program
 by incorporating the values on the stack. Then that program runs and you
 get the results. This is pretty typical of Joy code.

-
V('-5 1 4 quadratic')
+
V('-5 1 4 quadratic')
 

 

 
                                                   . -5 1 4 quadratic