tracem¶
Purpose¶
Returns the trace of a matrix or multi-dimensional array.
Format¶
-
t =
tracem(A)¶ - Parameters:
A (NxM matrix, or multidimensional array.) – Data.
- Returns:
t (Scalar, or multidimensional array.) – The trace of the matrix.
Examples¶
A = { 1 2,
3 4 };
// Compute the trace of the matrix
t = tracem(A);
After the code above:
t = 5
// Create a 2x3x3 array
A = areshape(seqa(1,1,18), 2|3|3);
print A;
Plane [1,.,.]
1 2 3
4 5 6
7 8 9
Plane [2,.,.]
10 11 12
13 14 15
16 17 18
t = tracem(A);
print t;
Plane [1,.,.]
15
Plane [2,.,.]
42