[Bug math/13942] x86 acos inaccurate near 1

[joseph at codesourcery dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13942

--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-04-04 09:20:34 UTC ---
I expect the approach suggested in the libc-help posting of using 
(1-x)*(1+x) would be fine as a fix.

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