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17 lines
422 B
C
17 lines
422 B
C
#ifndef MATH_H
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#define MATH_H
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// Constants
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#define PI 3.141592653589 // Should be good enough
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#define E 2.718281828459
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// Macros
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#define abs(x) ( (x) > 0 ? (x) : -(x) )
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#define sign(x) ( (x) == 0 ? 0 : ((x) < 0 ? -1 : 1 ) )
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#define floor(x) ( (int)(x) ) // C floors floats when converting to ints
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#define round(x) ( (int)((x) + 0.5) ) // Normal rounding
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#define ceil(x) ( (int)((x) + 1) ) // Always rounds up
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#endif
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