Re: Seperating Numerator and Denominator in MathCad

From: Richard Fateman (fateman_at_cs.berkeley.edu)
Date: 09/14/04

  • Next message: David Halitsky: "New list-server (and BB) for discussion re DAGs, posets, and permutations" 
    Date: Tue, 14 Sep 2004 15:06:11 GMT

    1. Usually Mathcad is not considered "symbolic math" and
    maybe has another newsgroup.

    2. What is in the numerator and denominator is sometimes a
    matter of opinion.

    consider exp(x-y). or is it 1/exp(y-z).

    You have not specified what class of functions you are talking
    about. If you are
    talking about rational function, ratios of polynomials,
    the above problem doesn't occur.

    Vinnie Nguyen wrote:

    > Hello all,
    >
    > I am currently working on a transfer function modeling program that
    > has the form :
    >
    > T(s) = A(s) / B(s)
    >
    > For each type of condition that I apply to get this transfer function,
    > I would have to constantly copy , paste the numerator and denominator
    > from this transfer function out into another function.
    >
    > Is there a way to break a part A(s) and B(s) in Mathcad using a built
    > in function , and/or some sort of seperate function out there?
    >
    > I would love something of the form : numer(T(s)) , or denom(T(s)) .
    > Would greatly appreciate any help.
    >
    > -Vinnie
    >

  • Next message: David Halitsky: "New list-server (and BB) for discussion re DAGs, posets, and permutations"

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