1fixatan(3)                      Allegro manual                      fixatan(3)
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NAME

6       fixatan  -  Fixed point inverse tangent lookup table. Allegro game pro‐
7       gramming library.
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SYNOPSIS

10       #include <allegro.h>
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13       fixed fixatan(fixed x);
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DESCRIPTION

16       This function finds the inverse tangent of a value using a  lookup  ta‐
17       ble.  The input value must be a fixed point radian. The inverse tangent
18       is the value whose tangent is `x'. Example:
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20          fixed result;
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22          /* Sets `result' to binary angle 13. */
23          result = fixatan(ftofix(0.326));
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RETURN VALUE

26       Returns the inverse tangent of a fixed point value, measured as a fixed
27       point binary format angle.
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SEE ALSO

31Allegro                          version 4.2.2                      fixatan(3)