Re: [LUG] AWK multipass

[Andrew Rogers <andrew@xxxxxxxxxxxxxxxx>]

Neil Williams wrote:

> On Sunday 01 Feb 2004 11:57 pm, Andrew Rogers wrote:
>  
>
> > Now I have different problem, awk doesn't have an erfc() function. I
> > need to process a lot of data and produce graphs, sometimes this
> > involves mathematical functions like erfc(). Maybe I'm trying to use awk
> > beyond its intended purpose. I have used C and C++ in the past but I
> > want to use a script instead. Perl seems to be a solution at the moment,
> > but I still haven't found an erfc() function. I need to learn about Perl
> > modules don't I?
> >    
>
> http://search.cpan.org/~rkobes/Math-Cephes-0.41/lib/Math/Cephes.pod
> http://search.cpan.org/~dslewart/Math-Libm-1.00/Libm.pm
>
> There always seems to be a Perl module for the job.
>
>  
I tried the Libm module above but got the following error:

Can't locate auto/Math/Libm/autosplit.ix in @INC (@INC contains: 
/usr/lib/perl5/5.6.1/i386-linux /usr/lib/perl5/5.6.1 
/usr/lib/perl5/site_perl/5.6.1/i386-linux /usr/lib/perl5/site_perl/5.6.1 
/usr/lib/perl5/site_perl .) at /usr/lib/perl5/5.6.1/AutoLoader.pm line 146.
at /usr/lib/perl5/5.6.1/Math/Libm.pm line 10

As a Perl beginner I have no clue how to deal with the above so I found 
another module at

http://home.online.no/~pjacklam/perl/modules/lib/Math/SpecFun/Erf.pm

which worked.

Regards
Andrew


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