# diag

Version:

Computes a diagonal matrix or the diagonal of a matrix. diag(a, 0) is equivalent to diag(a).

## Syntax

c = diag(a)
c = diag(a, b)

## a

Vector or matrix of any data type.

## b

Diagonal of a. b is an integer.

## c

Diagonal matrix or the diagonal of a matrix. c is a vector or matrix. If a is a matrix, diag(a) returns a column vector containing the diagonal of a and diag(a, b) returns a column vector containing the bth diagonal of a. If a is a vector of length n, diag(a, b) is a square matrix of size n+ abs (b) with a bth diagonal determined by a.

A = [1, 0, 0; 0, 2, 0; 0, 0, 3]
C = diag(A)

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported