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polyvac

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polyvac

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05 Aug 2004 (Updated )

Vectorized "polyval" for columns of a matrix

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Description

Vectorized "polyval" for polynomials represented by columns of a matrix Z (usually produced by POLYFIC).

Demo:
let x = a vector of length N:

DAT=polyvac(Z,x)

produces matrix DAT, so that

DAT(:,i)=polyval(Z(:,i),x(:));

Up to 10 times inctreased speed in comparison to nonvectorized version.

MATLAB release MATLAB 6.1 (R12.1)
Other requirements None
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Comments and Ratings (2)
17 Jan 2014 Ian  
12 Mar 2012 AMITAVA BISWAS  

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