On Mar 5, 2006, at 1:01 AM, sam wrote:David Treadwell wrote: exp(x) is implemented by:1. reducing x into the range |r| <= 0.5 * ln(2), such that x = k *ln(2) + r2. approximating exp(r) with a fifth-order polynomial,3. re-scaling by multiplying by 2^k: exp(x) = 2^k * exp(r)sinh(x) is mathematica
I wish I knew!
So I asked Google. Here's what I learned:
Most implementations are based on, or similar to the implementation
in the fdlibm package.
sinh(x) and cosh(x) are both based on exp(x). See http://
www.netlib.org/cgi-bin/netlibfiles.pl?filename=/fdlibm/e_sinh.c
exp(x) is implemented
On Mar 4, 2006, at 11:16 PM, Dennis Lee Bieber wrote:
> On Sat, 4 Mar 2006 14:23:10 -0500, David Treadwell
> <[EMAIL PROTECTED]> declaimed the following in
> comp.lang.python:
>
>> needed programming, be it CS or chemical engineering, taught it in
>> a [EMAIL PRO
On Mar 4, 2006, at 4:33 PM, Paul Rubin wrote:
> "sam" <[EMAIL PROTECTED]> writes:
>> Hello all, I am taking a class in scientific programming at the local
>> college. My problem is that the following difference produces
>> round off
>> errors as the value of x increases. For x >= 19 the diferenc
On Mar 4, 2006, at 5:55 AM, Dennis Lee Bieber wrote:
> On Fri, 3 Mar 2006 22:05:19 -0500, David Treadwell
> <[EMAIL PROTECTED]> declaimed the following in
> comp.lang.python:
>
>
>> My ability to think of data structures was stunted BECAUSE of
>> Fortran and BAS
o far) has
made sense to me, even if it took a few days of thought to figure it
out.
>
> Now please go ahead and tell me how Python can help me become a better
> scientist. And try to steer clear of the computer science buzzwords
> that don't mean anyting to me.
>
My pleasure.
