subspace

Angle between two subspaces.

Syntax

• T = subspace(A, B)

Input argument

• A - vector or matrix (real or single)
• B - vector or matrix (real or single)

Output argument

• T - scalar: angle.

Description

T = subspace(A, B) finds the angle between two subspaces specified by the columns of A and B.

Example

M = [1   1   1   1   1   1   1   1;
1  -1   1  -1   1  -1   1  -1;
1   1  -1  -1   1   1  -1  -1;
1  -1  -1   1   1  -1  -1   1;
1   1   1   1  -1  -1  -1  -1;
1  -1   1  -1  -1   1  -1   1;
1   1  -1  -1  -1  -1   1   1;
1  -1  -1   1  -1   1   1  -1];
A = M(:, 2:4);
B = M(:, 5:8);
R = subspace(A, B)

See also

orth.

History

Author

Allan CORNET