Last updated 8 months ago
Let's say you have to calculate x=A−1bx=A^{-1}bx=A−1b, so you would have to calculate A−1A^{-1}A−1to calculate xxx. Hence, instead of explicitly calculating A−1A^{-1}A−1, just solve for Ax=bAx=bAx=b using LULULU or other decomposition methods.