[Bug 237800] pow(3) returns inaccurate results

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237800

sgk at troutmask.apl.washington.edu changed:

           What    |Removed                     |Added
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                 CC|                            |sgk at troutmask.apl.washingto
                   |                            |n.edu

--- Comment #2 from sgk at troutmask.apl.washington.edu ---
troutmask:kargl[219] ./testd -a 10 29
libm =  1.0000000000000001e+29, /* 0x45f431e0, 0xfae6d722 */
mpfr =  9.9999999999999991e+28, /* 0x45f431e0, 0xfae6d721 */
 ulp = 0.51303

A 1/2 ULP error is certainly not a bad result given the
nuances of floating point arithmetic.

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