in reply to Lagrange Polynomials in Perl

You never invoke either subroutine.

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Re^2: Lagrange Polynomials in Perl
by Mascasc (Novice) on Apr 28, 2015 at 19:44 UTC
    This is just the module containing the algorithm, I invoke them in specific programs.
[reply]

      Well, yeah. And your question is why your program doesn't work when used. Do you suppose an example of how you use it might be helpful in diagnosing the problem? The problem could lie with the program itself (and several others have found issues), but it can also be how it is invoked.

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