When x is constant, returns t(Conj(x)) %*% P %*% x
(affine in P).
When P is constant, returns a QuadForm atom (quadratic in x).
At least one of x or P must be constant.
Usage
quad_form(x, P, assume_PSD = FALSE)
Arguments
- x
An Expression (vector)
- P
An Expression (square matrix, symmetric/Hermitian)
- assume_PSD
If TRUE, assume P is PSD without checking (only when P is constant).
Value
A QuadForm atom or an affine Expression
