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det

Compute determinant of symbolic matrix

Syntax

r = det(A)

Description

r = det(A) computes the determinant of A, where A is a symbolic or numeric matrix. det(A) returns a symbolic expression for a symbolic A and a numeric value for a numeric A.

Examples

Compute the determinant of the following symbolic matrix:

syms a b c d
det([a, b; c, d])
ans =
a*d - b*c

Compute the determinant of the following matrix containing the symbolic numbers:

A = sym([2/3 1/3; 1 1])
r = det(A)
A =
[ 2/3, 1/3]
[   1,   1]
 
r =
1/3

See Also

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Introduced before R2006a

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