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							#ifndef SYS_MATH_H
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							#define SYS_MATH_H
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							#include "ultra64.h"
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							f32 Math_FactorialF(f32 n);
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							f32 Math_Factorial(s32 n);
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							f32 Math_PowF(f32 base, s32 exp);
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							f32 Math_SinF(f32 angle);
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							f32 Math_CosF(f32 angle);
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							s16 Math_Atan2S(f32 x, f32 y);
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							f32 Math_Atan2F(f32 x, f32 y);
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							#endif
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