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converted double to float64

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SVN=126446
This commit is contained in:
Ken Thompson 2008-07-08 20:48:41 -07:00
parent 8e4ee0045f
commit 77e20e8cec
18 changed files with 141 additions and 145 deletions
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22
src/lib/math/log.go
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@ -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 {