MultiSolve 3x3 Matlab script

Publisher review:
MultiSolve 3x3 - Vectorized solve of multiple 3x3 linear systems xx = multisolve3x3(AA,b)Highly optimized solution of multiple 3x3 linear systems. The m 3-by-3-coefficient matrices can be given in 2 forms:(1) The argument matrix AA is 3m x 3 (i.e., the k-th linear system occupies rows 3k-2:3k).(2) The argument AA is an 3x3xm array. (the k-th linear system is AA(:,:,k) ).Similarly, the result vectors b can be given in 2 forms (independent of AA):(1) a 3m x 1 vector, where the k-th result is in rows 3k-2:3k,(2) a 3xm matrix, whose k-th column contains the k-th result.Either way, the solution xx is given in size identical to that of b.Example: m = 10 ; % system numAA = rand(3,3,m);bb = rand(3,m);xx = multisolve3x3(AA,bb);%test results:for jj=1:mmax(abs( AA(:,:,jj) * xx(:,jj) - bb(:,jj) ))end Requirements: · MATLAB Release: R2006a
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Windows / Linux / Mac OS / BSD / Solaris

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