1al_fixcos(3)                                                      al_fixcos(3)
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NAME

6       al_fixcos - Allegro 5 API
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              al_fixed al_fixcos(al_fixed x);
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DESCRIPTION

14       This  function  finds  the cosine of a value using a lookup table.  The
15       input value must be a fixed point binary angle.
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17       Example:
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19              al_fixed angle;
20              float result;
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22              /* Set the binary angle to 45 degrees. */
23              angle = al_itofix(32);
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25              /* The cosine of 45 degrees is about 0.7071. */
26              result = al_fixtof(al_fixcos(angle));
27              assert(result > 0.7 && result < 0.71);
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RETURN VALUE

30       Returns the cosine of a fixed point binary  format  angle  as  a  fixed
31       point value.
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35Allegro reference manual                                          al_fixcos(3)
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