New math functions?

[Anthony Kesich]

They are (straight from math.h):

float fabs (float x); (absolute value)
float ldexp (float x, int n); (computes x*2^n)
float exp (float f); (e^f)
float sqrt (float x);
float asin (float x);
float acos (float x);
float atan2 (float y, float x);
float atan (float x);
float sin (float x);
float cos (float x);
float tan (float x);
float sinh (float x);
float cosh (float x);
float tanh (float x);
float frexp (float x, int *pexp); (splits into the fractional part of a float, which is returned, and the exponent which is stored in the pointer)
float log10 (float x);
float log (float x);
float pow (float x, float y);
float ceil (float x);
float floor (float x);
float modf (float x, float *ipart); (performs the modulus function on x, returns the result and stores the fraction in the pointer. Look in the manual for more explanation)
float fmod (float x, float y); (the remainder for x%y)

float mchptoieee (unsigned long v); (converts the microchip version of 32-bit to ieee standard)
unsigned long ieeetomchp (float v); (mchptoieee in reverse)
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Unfortunately, thay all take floating point inputs and return floats. Its not hard to typecast though. And I, myself, am glad to have a math.h library at my disposal rather than using my own functions, even if it is for 32-bit floats.

If you've already installed the compiler, the manual should be in c:\mcc18\docs\ (or whatever-your-install-directory-is\docs). It has plenty of documentation available. There are also many functions to access deeper features of the chip that took some tricky coding before.

-Tony K