* log(x) how?
@ 2004-01-07 12:11 Douglas Macdonald
2004-01-07 15:39 ` Ian Lance Taylor
0 siblings, 1 reply; 2+ messages in thread
From: Douglas Macdonald @ 2004-01-07 12:11 UTC (permalink / raw)
To: gcc-help
Hi,
Can anyone tell me how log(x) is calculated, what
computational metod it uses?
And, where can I find the math.c source code, so that
I can investigate it myself?
Douglas
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: log(x) how?
2004-01-07 12:11 log(x) how? Douglas Macdonald
@ 2004-01-07 15:39 ` Ian Lance Taylor
0 siblings, 0 replies; 2+ messages in thread
From: Ian Lance Taylor @ 2004-01-07 15:39 UTC (permalink / raw)
To: Douglas Macdonald; +Cc: gcc-help
Douglas Macdonald <mm2ps@yahoo.co.uk> writes:
> Can anyone tell me how log(x) is calculated, what
> computational metod it uses?
>
> And, where can I find the math.c source code, so that
> I can investigate it myself?
The log() function does not come from gcc (except that gcc will
simplify a few cases). It comes from your math library, -lm. That is
where you have to look. Since you didn't say what system you are
running on, we can't give you any suggestions as to where to find the
source.
Ian
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2004-01-07 12:11 log(x) how? Douglas Macdonald
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