I have a m*n matrix which i know is shaped like this :
if a1, a2, ..., am, and b1, b2, ..., bn are real numbers, then for any matrix coefficient m(i,j) = ai*bj
Preliminary question : how do you call such product of two vectors that builds a matrix ? Thx to let me know so i'll update the question.
But, besides naming, here's the issue :
1) i get the m(i,j) from a measure, so there's a noise added. (less than 2% if that matters)
2) some measures are missing <=> the matrix is sparse. Still i have at least one measure for each line/column.
Question : How could i get the ai and bj coefficients for this matrix ?