MathGroup Archive 1998

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Symbolic Matrix Inversion -- What's the best method for Rank under 100?


Given a symbolic matrix of rank N, is there a way to avoid the excessive
symbol growth which occurs while finding its symbolic inverse? 

The maximum rank would be N=100, 

M f = N d  where M and N are symbolic matrices and f and d are vectors.
The elements of M and N are nonlinear symbolic functions of nx, ny, and
x.

Would like f=LinearSolve[M,N d] solution or the symbolic inverse of M.

Thank you,

 



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