int MySpawn(const char *CmdLine, char *FileNameToDelete )
int FUNCTION plot(const MATRIX & m ) precedence 4;
int FUNCTION plot( double (*pfunc)(double, double ), double xMin, double xMax, double yMin, double yMax, double xStep, double yStep );
int FUNCTION plot(const MATRIX & m)
int FUNCTION plot( double (*pfunc)(double, double ), double xMin, double xMax, double yMin, double yMax, double xStep, double yStep )