comment on

It very much depends on * what * exactly you want to do. I have done some number crunching in Perl (processing many GB's of data) and it worked fine for me. You would expect C to have better performance though.

Some matrix operations can be notoriously tricky, especially if the matrices get big and/or the numbers have high precision. A lot of stuff was developed in mathematics to tackle this.

So you typically want to use some C-library or Perl module tailored for this. You can take a look at Math::Matrix (Perl) or try your luck with some C math library. Check for example http://www.ibm.com/developerworks/opensource/library/l-matrix.html

I am aware this doesn't answer your question but I am afraid there is no clear-cut answer. Tell me a bit more what you want to do with the matrices and how big they are.

Didn't know PDL, seems like an interesting suggestion!

In reply to Re: when to c, when to perl by dHarry
in thread when to c, when to perl by stabu

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


Do you know where your variables are?
	PerlMonks