How to run svd_r_raw?

[pygabc1]

I like to run svd_r_raw, and how to run it? Also, in svd_r_raw(ctx, ...) what is ctx? How to call ctx? Thanks.

[thartmann15]

svd_r_raw is not meant to be called directly. use svd_r instead: >>> from mpmath import mp >>> A = mp.matrix([[2, -2, -1], [3, 4, -2], [-2, -2, 0]]) >>> S = mp.svd_r(A, compute_uv = False) If you really, really want to use svd_r_raw directly (ctx has to be mp): >>> from mpmath.matrices.eigen_symmetric import svd_r_raw; >>> svd_r_raw(mp,A)