# \[Bug #913\](Closed) mathn $B$7$?\>l9g!"(Bsqrt(NaN) $B$,J#AG?t$K$J$k(B

**URL:** <https://www.ruby-forum.com/t/bug-913-closed-mathn-b-7-l9g-bsqrt-nan-b-j-ag-t-k-j-k-b/156247>\
**Category:** Development\
**Created:** [December 23, 2008, 12:33pm UTC](https://www.ruby-forum.com/t/bug-913-closed-mathn-b-7-l9g-bsqrt-nan-b-j-ag-t-k-j-k-b/156247 "2008-12-23T12:33:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Yuki\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/a6a055/32.png) [@Yuki\_S](https://www.ruby-forum.com/u/Yuki_S)\
**Post date:** [December 23, 2008, 12:33pm UTC](https://www.ruby-forum.com/t/bug-913-closed-mathn-b-7-l9g-bsqrt-nan-b-j-ag-t-k-j-k-b/156247/1 "2008-12-23T12:33:51Z")

</div>

e$B%A%1%C%He(B #913 e$B$,99?7$5$l$^$7$?!#e(B (by Yuki S.)

e$B%+%F%4%je(B libe$B$K%;%C%He(B  
e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B

## applied in r20938.

[http://redmine.ruby-lang.org/issues/show/913](http://redmine.ruby-lang.org/issues/show/913)