Given any formula, what is the principle to organize the computations to make the round-off error as small as possible? Is there a good book talk about this?
For example. $$ f(x)*g(y)*z(t) $$ , where $x,y,t$ are varaibles. and $f,g,z$ can be any functions.
For a better round-off error, is there a basic law to determine to compute (fg) first or (gz) first?