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| author | Ken Thompson <ken@golang.org> | 2008-07-08 20:48:41 -0700 |
|---|---|---|
| committer | Ken Thompson <ken@golang.org> | 2008-07-08 20:48:41 -0700 |
| commit | 7a74340f6c31db36b4f04b71407db9a137c1f36e (patch) | |
| tree | a6d555256fd9b1fbdef9694f105c42754241d004 /src/lib/math/log.go | |
| parent | 6f5a0bd20bc136f6306b4ebb07efe63345311e6d (diff) | |
| download | golang-7a74340f6c31db36b4f04b71407db9a137c1f36e.tar.gz | |
converted double to float64
SVN=126446
Diffstat (limited to 'src/lib/math/log.go')
| -rw-r--r-- | src/lib/math/log.go | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/lib/math/log.go b/src/lib/math/log.go index 96b3d9695..927a7acdf 100644 --- a/src/lib/math/log.go +++ b/src/lib/math/log.go @@ -7,13 +7,13 @@ package math export log, log10 /* - log returns the natural logarithm of its floating - point argument. - - The coefficients are #2705 from Hart & Cheney. (19.38D) - - It calls frexp. -*/ + * log returns the natural logarithm of its floating + * point argument. + * + * The coefficients are #2705 from Hart & Cheney. (19.38D) + * + * It calls frexp. + */ const ( @@ -30,9 +30,9 @@ const ) func -log(arg double) double +log(arg float64) float64 { - var x, z, zsq, temp double; + var x, z, zsq, temp float64; var exp int; if arg <= 0 { @@ -54,12 +54,12 @@ log(arg double) double temp = ((p3*zsq + p2)*zsq + p1)*zsq + p0; temp = temp/(((zsq + q2)*zsq + q1)*zsq + q0); - temp = temp*z + double(exp)*log2; + temp = temp*z + float64(exp)*log2; return temp; } func -log10(arg double) double +log10(arg float64) float64 { if arg <= 0 { |