8.4.7 Copying matrices
— Function: int gsl_matrix_memcpy
(gsl_matrix * dest, const gsl_matrix * src
This function copies the elements of the matrix src into the
matrix dest. The two matrices must have the same size.
— Function: int gsl_matrix_swap
(gsl_matrix * m1, gsl_matrix * m2
This function exchanges the elements of the matrices m1 and
m2 by copying. The two matrices must have the same size.
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