1al_fixatan(3) al_fixatan(3)
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6 al_fixatan - Allegro 5 API
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9 #include <allegro5/allegro.h>
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11 al_fixed al_fixatan(al_fixed x)
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14 This function finds the inverse tangent of a value using a lookup ta‐
15 ble. The input must be a fixed point value. The inverse tangent is
16 the value whose tangent is x.
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18 Example:
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20 al_fixed result;
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22 /* Sets result to binary angle 13. */
23 result = al_fixatan(al_ftofix(0.326));
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26 Returns the inverse tangent of a fixed point value, measured as a fixed
27 point binary format angle.
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31Allegro reference manual al_fixatan(3)