0/0calculation. The return value for each of these functions is a double-precision scalar. If in Mlmode you enter
O-Matrix will respond
NaN == NaN
The function isnan should be used to check for not a number. According to the IEEE standard, the answer above should be false, but the Microsoft compiler has a bug in it and results in true for the comparison above. In fact, Harmonic Software uses the Intel compiler for compiling O-Matrix, but Intel insisted on copying the Microsoft bug for compatibility.