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35 lines
880 B
35 lines
880 B
export var epsilon = 1e-6; |
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export var epsilon2 = 1e-12; |
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export var pi = Math.PI; |
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export var halfPi = pi / 2; |
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export var quarterPi = pi / 4; |
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export var tau = pi * 2; |
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export var degrees = 180 / pi; |
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export var radians = pi / 180; |
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export var abs = Math.abs; |
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export var atan = Math.atan; |
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export var atan2 = Math.atan2; |
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export var cos = Math.cos; |
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export var ceil = Math.ceil; |
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export var exp = Math.exp; |
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export var floor = Math.floor; |
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export var log = Math.log; |
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export var pow = Math.pow; |
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export var sin = Math.sin; |
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export var sign = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }; |
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export var sqrt = Math.sqrt; |
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export var tan = Math.tan; |
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export function acos(x) { |
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return x > 1 ? 0 : x < -1 ? pi : Math.acos(x); |
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} |
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export function asin(x) { |
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return x > 1 ? halfPi : x < -1 ? -halfPi : Math.asin(x); |
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} |
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export function haversin(x) { |
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return (x = sin(x / 2)) * x; |
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}
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