The Inverse

Linear Algebra and the C Language · Wikibooks

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    From Wikibooks, under CC BY-SA 4.0, as the source states it. This page at Wikibooks.

    The Inverse


    The Inverse with gj_TP_mR(); (TP)

    In linear algebra, an invertible matrix is a square matrix that has an inverse... Wikipedia: Invertible matrix

    The function

    invgj_mR();

    Code study

    The function: invgj_mR(double **A, double **invA);

    The function: invgj_pivot_mR(double **AID);

    • c00c.c
    • The function selects the best pivot and puts zero under the pivot.
    • c00d.c
    • The function puts zero above the pivot.
    • c00e.c

    The function: sort_c_mR(double **Ab);

    The function: sort_r_mR(double **Ab);

    Some applications

    Solve: AX = B

    Solve: A|x1|x2| ... |xn| = b1|b2| ... |bn|