Mercurial > hg > octave-nkf
diff scripts/polynomial/polyval.m @ 2311:2b5788792cad
[project @ 1996-07-11 20:18:38 by jwe]
author | jwe |
---|---|
date | Thu, 11 Jul 1996 20:18:38 +0000 |
parents | 5cffc4b8de57 |
children | 204cc7db6f4a |
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--- a/scripts/polynomial/polyval.m +++ b/scripts/polynomial/polyval.m @@ -17,25 +17,25 @@ ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA ### 02111-1307, USA. -function y = polyval (c, x) +## usage: polyval (c, x) +## +## Evaluate a polynomial. +## +## In octave, a polynomial is represented by it's coefficients (arranged +## in descending order). For example a vector c of length n+1 corresponds +## to the following nth order polynomial +## +## p(x) = c(1) x^n + ... + c(n) x + c(n+1). +## +## polyval(c,x) will evaluate the polynomial at the specified value of x. +## +## If x is a vector or matrix, the polynomial is evaluated at each of the +## elements of x. +## +## SEE ALSO: polyvalm, poly, roots, conv, deconv, residue, filter, +## polyderiv, polyinteg - ## usage: polyval (c, x) - ## - ## Evaluate a polynomial. - ## - ## In octave, a polynomial is represented by it's coefficients (arranged - ## in descending order). For example a vector c of length n+1 corresponds - ## to the following nth order polynomial - ## - ## p(x) = c(1) x^n + ... + c(n) x + c(n+1). - ## - ## polyval(c,x) will evaluate the polynomial at the specified value of x. - ## - ## If x is a vector or matrix, the polynomial is evaluated at each of the - ## elements of x. - ## - ## SEE ALSO: polyvalm, poly, roots, conv, deconv, residue, filter, - ## polyderiv, polyinteg +function y = polyval (c, x) ## Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994.