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Back to Linear Algebra

rank

Matrix rank

Syntax

r = rank(A)

Description

Estimates the rank of a matrix using singular value decomposition. The rank is the number of singular values above a tolerance threshold.

Parameters

NameDescription
AInput matrix

Returns

Scalar rank

Examples

Try It
>> rank(eye(3))
3
Try It
>> rank([1 2; 2 4])
1

See Also

svddetcond