sincos
void sincos(MAPM &sinR,MAPM &cosR,int toDigits)
void sincos(MAPM &sinR,MAPM &cosR)
{sincos(sinR,cosR,myDigits());}
sincos (__imag__ x, &sinix, &cosix);
sincos (__imag__ x, &sinix, &cosix);
extern void sincos(double x, double *sin, double *cos);
sincos(x, &sind, &cosd);