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Update index.md
authorRan Yi <42791146+i-Yirannn@users.noreply.github.com>
Fri, 16 Nov 2018 03:38:07 +0000 (11:38 +0800)
committerGitHub <noreply@github.com>
Fri, 16 Nov 2018 03:38:07 +0000 (11:38 +0800)
commiteb1991d1da0a28cc162a83d0040f3e5c0abc8ec0
treef246de6f79c9a1aef53aa624d34a1c4a07b7a9d8
parent400a0adf8fac9aa9c6cf09772572cd7cc2bc7b0d
Update index.md
docs/math/index.md