grapes-and-grapes: Quadratic form matrix product

Description Usage Arguments Value Examples

Description

Calculate the quadratic form

Q = t(x) %\*% A %\*% x

Usage

1
A %&% x

Arguments

A

A square matrix

x

A vector or matrix

Value

The quadratic product

Examples

1
diag(5) %&% 1:5

configural documentation built on Jan. 19, 2021, 1:06 a.m.