1al_fixhypot(3)             Library Functions Manual             al_fixhypot(3)
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NAME

6       al_fixhypot
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              al_fixed al_fixhypot(al_fixed x, al_fixed y)
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DESCRIPTION

14       Fixed  point  hypotenuse  (returns the square root of x*x + y*y).  This
15       should be better than calculating the formula yourself manually,  since
16       the error is much smaller.
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20Allegro reference manual                                        al_fixhypot(3)