Compute a Matrix Decomposition.
Compute sgn, scale, M such that P = sgn * scale * dot(M, t(M)).
.decomp_quad(P, cond = NA, rcond = NA)
P |
A real symmetric positive or negative (semi)definite input matrix |
cond |
Cutoff for small eigenvalues. Singular values smaller than rcond * largest_eigenvalue are considered negligible. |
rcond |
Cutoff for small eigenvalues. Singular values smaller than rcond * largest_eigenvalue are considered negligible. |
A list consisting of induced matrix 2-norm of P and a rectangular matrix such that P = scale * (dot(M1, t(M1)) - dot(M2, t(M2)))
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