Assuming that f is a scalar and d is a diagonal matrix, we can compute a by multiplying f with the diagonal elements of d. In MATLAB, we can use the diag() function to access the diagonal elements of a matrix as a column vector. Then, we can multiply f with this column vector to get the desired result.
If we want the resulting vector a to be a row vector, we need to take the transpose of the product so that the dimensions match. On the other hand, if we want a to be a column vector, we can omit the transpose.
Here's the code to compute a as a row vector:
main.m18 chars2 lines
Here's the code to compute a as a column vector:
main.m17 chars2 lines
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