I would like to efficiently fill in or assign values to matrix m:
a[1,1] to a[4,1] to be equal to 1.
a[1,2] to a[4,2] to be equal to another column of value:
a[1,3] to a[4,3] to be equal to another column of value:
a[1,4] to a[4,4] to be evaluated based on the matrix locations of the other a[1,1] to a[4,3] cells as in excel cell format of :
a[1,4] = a[1,1]*a[2,3]+ etc etc
but as soon as those dependencies are replaced with actual numbers, for example a[1,1] is now no longer symbolic but actual values, then how to symbolically do those evaluations based on cell locations similar to Excel as I will reuse this matrix again? Maybe use Table or something to evaluate and then join them together into a large matrix ?