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Sorry, you meant to change this line?

P= pow ( (sqrt( (S*S)-(Q*Q*Q)+fabs(S) )), 1.0/3.0);

I have changed it, still gets an error. Closes with no answer :(

Thanks Salem, here is the updated code, but still doesn't work!



/*
** Solve a cubic polynomial
** By x
*/

#include <math.h>

I would go with XP pro, much faster. Uses less RAM also, which is needed for your math programs.

Ok this is what ive done so far:




/*
** Solve a cubic polynomial
** By xxxxxxxxxxxxxxxx
*/