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What Is Optimization Toolbox?

What Is Optimization Toolbox?

What Is Optimization Toolbox?

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gangstrPurposeSyntaxDescriptionSee AlsoZero out “small” entries subject to structural rankA = gangstr(M,tol)A = gangstr(M,tol) creates matrix A of full structural rank suchthat A is M except that elements of M that are relatively “small,” basedon tol, are zeros in A. The algorithm decreases tol, if needed, untilsprank(A) = sprank(M). M must have at least as many columns asrows. Default tol is 1e-2.gangstr identifies elements of M that are relatively less than tol byfirst normalizing all the rows of M to have norm 1. It then examinesnonzeros in M in a columnwise fashion, replacing with zeros thoseelements with values of magnitude less than tol times the maximumabsolute value in that column.sprank, spy8-130

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