Command Reference : Matrix Language Reference
Extract main diagonal from matrix.
Syntax: @getmaindiagonal(m)
m: matrix, vector, sym
Return: vector
Returns a vector created from the main diagonal of the matrix or sym object. The main diagonal is defined as the elements {(1, 1), (2, 2), ..., (k, k)} of the matrix, where k is the smaller of the number of rows and columns.
vector v1 = @getmaindiagonal(m1)
vector v2 = @getmaindiagonal(s1)