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| Summary | #include <math.h> double cos ( double x); /* number to calculate cosine for */ |
| Description | The cos function calculates the cosine of the floating-point value x. The value of x must be in the range ±2^32 (±4294967296.0). Outside this value range an NaN error is returned. |
| Return Value | The cos function returns the cosine for the value x. |
| See Also | |
| Example |
#include <math.h>
#include <stdio.h> /* for printf */
void tst_cos (void) {
float x;
float y;
for (x = 0; x < (2 * 3.1415); x += 0.1) {
y = cos (x);
printf ("COS(%f) = %f\n", x, y);
}
}
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