gmatmul: Geometric matrix multiplication A diamond X
In CVXR: Disciplined Convex Optimization

gmatmul

R Documentation

Geometric matrix multiplication A diamond X

Description

Computes the geometric matrix product where (A diamond X)_ij = prod_k X_kj^A_ik. Log-log affine atom for DGP. Solve with psolve(problem, gp = TRUE).

Usage

gmatmul(A, X)

Arguments

`A`	A constant matrix
`X`	An Expression (positive matrix)

Value

A Gmatmul atom

Examples

x <- Variable(2, pos = TRUE)
A <- matrix(c(1, 0, 0, 1), 2, 2)
prob <- Problem(Minimize(sum(gmatmul(A, x))), list(x >= 0.5))
## Not run: psolve(prob, gp = TRUE)

CVXR documentation built on March 6, 2026, 9:10 a.m.