M Mike H Nov 8, 2008 #2 Hi, The double minus -- or more correctly the double unary coerces logical values to numeric values of 1 (true) or 0 (False) formula like SUMPRODUCT can then add these up to obtain the result. Mike
Hi, The double minus -- or more correctly the double unary coerces logical values to numeric values of 1 (true) or 0 (False) formula like SUMPRODUCT can then add these up to obtain the result. Mike