1al_fixsin(3)               Library Functions Manual               al_fixsin(3)
2
3
4

NAME

6       al_fixsin
7

SYNOPSIS

9              #include <allegro5/allegro.h>
10
11              al_fixed al_fixsin(al_fixed x);
12

DESCRIPTION

14       This  function  finds  the  sine  of a value using a lookup table.  The
15       input value must be a fixed point binary angle.
16
17       Example:
18
19                  al_fixed angle;
20                  int result;
21
22                  /* Set the binary angle to 90 degrees. */
23                  angle = al_itofix(64);
24
25                  /* The sine of 90 degrees is one. */
26                  result = al_fixtoi(al_fixsin(angle));
27                  assert(result == 1);
28

RETURN VALUE

30       Returns the sine of a fixed point  binary  format  angle.   The  return
31       value will be in radians.
32
33
34
35Allegro reference manual                                          al_fixsin(3)
Impressum