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Update index.md
authorluoguyuntianming <46839655+luoguyuntianming@users.noreply.github.com>
Mon, 15 Jul 2019 12:43:58 +0000 (20:43 +0800)
committerGitHub <noreply@github.com>
Mon, 15 Jul 2019 12:43:58 +0000 (20:43 +0800)
commit948a3173d4dd23daedfbd36aa6dd5a316f17106b
tree2bf69191624578e843a0408def599aabceeb140b
parentd32977bbec9300b17f994b0e52f35c319544549e
Update index.md
docs/math/index.md