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annotate src/luan/modules/MathLib.java @ 167:4c0131c2b650

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merge luan/lib into modules git-svn-id: https://luan-java.googlecode.com/svn/trunk@168 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Sun, 22 Jun 2014 04:28:32 +0000
parents src/luan/lib/MathLib.java@05f8c21160ef
children
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rev   line source
167
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1 package luan.modules;
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3 import luan.LuanState;
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4 import luan.LuanTable;
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5 import luan.LuanFunction;
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6 import luan.LuanJavaFunction;
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7 import luan.LuanException;
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10 public final class MathLib {
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11
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12 public static final LuanFunction LOADER = new LuanFunction() {
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13 @Override public Object call(LuanState luan,Object[] args) {
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14 LuanTable module = new LuanTable();
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15 try {
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16 add( module, "abs", Double.TYPE );
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17 add( module, "acos", Double.TYPE );
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18 add( module, "asin", Double.TYPE );
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19 add( module, "atan", Double.TYPE );
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20 add( module, "atan2", Double.TYPE, Double.TYPE );
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21 add( module, "ceil", Double.TYPE );
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22 add( module, "cos", Double.TYPE );
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23 add( module, "cosh", Double.TYPE );
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24 add( module, "deg", Double.TYPE );
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25 add( module, "exp", Double.TYPE );
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26 add( module, "floor", Double.TYPE );
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27 add( module, "log", Double.TYPE );
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28 add( module, "min", Double.TYPE, new double[0].getClass() );
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29 add( module, "max", Double.TYPE, new double[0].getClass() );
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30 add( module, "modf", Double.TYPE );
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31 module.put("pi",Math.PI);
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32 add( module, "pow", Double.TYPE, Double.TYPE );
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33 add( module, "rad", Double.TYPE );
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34 add( module, "random" );
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35 add( module, "sin", Double.TYPE );
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36 add( module, "sinh", Double.TYPE );
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37 add( module, "sqrt", Double.TYPE );
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38 add( module, "tan", Double.TYPE );
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39 add( module, "tanh", Double.TYPE );
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40 } catch(NoSuchMethodException e) {
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41 throw new RuntimeException(e);
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42 }
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43 return module;
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44 }
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45 };
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47 private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException {
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48 t.put( method, new LuanJavaFunction(MathLib.class.getMethod(method,parameterTypes),null) );
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49 }
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51 public static double abs(double x) {
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52 return Math.abs(x);
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53 }
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55 public static double acos(double x) {
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56 return Math.acos(x);
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57 }
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59 public static double asin(double x) {
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60 return Math.asin(x);
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61 }
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63 public static double atan(double x) {
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64 return Math.atan(x);
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65 }
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67 public static double atan2(double y,double x) {
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68 return Math.atan2(y,x);
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69 }
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71 public static double ceil(double x) {
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72 return Math.ceil(x);
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73 }
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75 public static double cos(double x) {
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76 return Math.cos(x);
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77 }
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79 public static double cosh(double x) {
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80 return Math.cosh(x);
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81 }
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83 public static double deg(double x) {
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84 return Math.toDegrees(x);
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85 }
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87 public static double exp(double x) {
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88 return Math.exp(x);
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89 }
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91 public static double floor(double x) {
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92 return Math.floor(x);
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93 }
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94
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95 public static double log(double x) {
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96 return Math.log(x);
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97 }
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99 public static double min(double x,double... a) {
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100 for( double d : a ) {
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101 if( x > d )
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102 x = d;
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103 }
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104 return x;
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105 }
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106
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107 public static double max(double x,double... a) {
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108 for( double d : a ) {
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109 if( x < d )
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110 x = d;
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111 }
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112 return x;
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113 }
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114
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115 public static double[] modf(double x) {
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116 double i = (int)x;
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117 return new double[]{i,x-i};
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118 }
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119
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120 public static double pow(double x,double y) {
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121 return Math.pow(x,y);
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122 }
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123
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124 public static double rad(double x) {
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125 return Math.toRadians(x);
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126 }
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127
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128 public static double random() {
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129 return Math.random();
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130 }
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131
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132 public static double sin(double x) {
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133 return Math.sin(x);
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134 }
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135
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136 public static double sinh(double x) {
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137 return Math.sinh(x);
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138 }
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139
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140 public static double sqrt(double x) {
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141 return Math.sqrt(x);
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142 }
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143
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144 public static double tan(double x) {
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145 return Math.tan(x);
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146 }
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147
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148 public static double tanh(double x) {
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149 return Math.tanh(x);
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150 }
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151
55
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152 }