yes of course. Leading solution:
function b = matInc(a)
[b aa] = ndgrid(1:max(a), a);
b(b > aa) = 0;
Inner product of two vectors
Sum of diagonal of a square matrix
Return unique values without sorting
Remove NaN ?
Find the elements of a matrix according to a defined property.
Matrix which contains the values of an other matrix A at the given locations.
First non-zero element in each column
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