extremely small numbers

[jim mcnamara]

Do only double precision arithmetic. It's getting rounded if you convert to single precision.

const double g=.0000000000667;
double whatever, result
float someval;
result = whatever * g * convert(someval);

Note that most implementations of C and C++ don't do a good job of casting single to double - that's why:

double convert(float in){
        double tmp;
        char start[25], *end;
        memset(start,0x00, sizeof(start));
        sprintf(start,"%f",in);
        end=s;
        return strtod(s,&end);

}

[SteveCRM]

thanks! I'll give that a run