# rank

Version:

Returns the rank of a matrix. MathScript determines the numerical rank according to the number of singular values larger than the tolerance.

## Syntax

n = rank(a)
n = rank(a, tol)

## a

Matrix of floating-point or complex numbers.

## tol

Tolerance of a. tol is a scalar. If you do not specify tol, MathScript computes the tolerance using the following equation: tol = max(size(a))*(norm(a)*eps. eps is defined by the following equation: eps= 2^(-52) = 2.22e-16.

## n

Returns the rank of a. n is an integer.

B = [1, 2, 3; 4, 5, 6]
A = B'*B
rank(A)

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported