Zilog Z8F0130 - Manual (Page 462)

Appendix B. C Standard Library UM013037-1212
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div_t t;

int q;

int r;

t=div (x,y);

q=t.quot;

r=t.rem;
exp
Computes the exponential function of x . A range error occurs if the magnitude of x is too
large.
Synopsis
#include

double exp(double x);
Returns
The exponential value.
Example
double y=.1234;

double x;

x=exp(y)
fabs
Computes the absolute value of a floating-point number x .
Synopsis
#include

double fabs(double x);
Returns
The absolute value of x.
Example
double y=6.23;

double x;

x=fabs(y);