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  • Liam M. Healy's avatar
    Linear algebra · 893af33f
    Liam M. Healy authored
    Move user-friendly linear algebra from GSLL, update the invert-matrix
    function to use optional arguments in GSLL functions and return the
    determinant as the second value, and add a determinant function.  Also
    copy the input matrix in these two functions because
    gsl:LU-decomposition alters the input matrix.  Test with
    (* (invert-matrix gsl::*vander4*) gsl::*vander4*).
    893af33f