1 | export var abs = Math.abs;
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2 | export var atan = Math.atan;
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3 | export var atan2 = Math.atan2;
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4 | export var ceil = Math.ceil;
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5 | export var cos = Math.cos;
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6 | export var exp = Math.exp;
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7 | export var floor = Math.floor;
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8 | export var log = Math.log;
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9 | export var max = Math.max;
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10 | export var min = Math.min;
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11 | export var pow = Math.pow;
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12 | export var round = Math.round;
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13 | export var sign = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; };
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14 | export var sin = Math.sin;
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15 | export var tan = Math.tan;
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16 |
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17 | export var epsilon = 1e-6;
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18 | export var epsilon2 = 1e-12;
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19 | export var pi = Math.PI;
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20 | export var halfPi = pi / 2;
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21 | export var quarterPi = pi / 4;
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22 | export var sqrt1_2 = Math.SQRT1_2;
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23 | export var sqrt2 = sqrt(2);
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24 | export var sqrtPi = sqrt(pi);
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25 | export var tau = pi * 2;
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26 | export var degrees = 180 / pi;
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27 | export var radians = pi / 180;
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28 |
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29 | export function sinci(x) {
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30 | return x ? x / Math.sin(x) : 1;
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31 | }
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32 |
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33 | export function asin(x) {
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34 | return x > 1 ? halfPi : x < -1 ? -halfPi : Math.asin(x);
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35 | }
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36 |
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37 | export function acos(x) {
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38 | return x > 1 ? 0 : x < -1 ? pi : Math.acos(x);
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39 | }
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40 |
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41 | export function sqrt(x) {
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42 | return x > 0 ? Math.sqrt(x) : 0;
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43 | }
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44 |
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45 | export function tanh(x) {
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46 | x = exp(2 * x);
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47 | return (x - 1) / (x + 1);
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48 | }
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49 |
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50 | export function sinh(x) {
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51 | return (exp(x) - exp(-x)) / 2;
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52 | }
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53 |
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54 | export function cosh(x) {
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55 | return (exp(x) + exp(-x)) / 2;
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56 | }
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57 |
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58 | export function arsinh(x) {
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59 | return log(x + sqrt(x * x + 1));
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60 | }
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61 |
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62 | export function arcosh(x) {
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63 | return log(x + sqrt(x * x - 1));
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64 | }
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