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annotate sintab.c @ 3:5a977ccbc7a9 default tip

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Empty changelog
author darius
date Sat, 06 Dec 1997 05:41:29 +0000
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3
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1 /* $Id: sintab.c,v 1.1.1.1 1997/12/06 05:41:31 darius Exp $ */
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2
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3 /*
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4 * sintab.c
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5 *
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6 * Also initialize blk_giwdth to 100000 and blk_windgwidth
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7 * to WINSIDE/blk_gwidth
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8 */
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9 #include "copyright.h"
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10
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11 double *Cos;
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12 double Sin[] = {
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13 -1.0000, -0.9997, -0.9988, -0.9973, -0.9952, -0.9925,
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14 -0.9892, -0.9853, -0.9808, -0.9757, -0.9701, -0.9638,
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15 -0.9570, -0.9496, -0.9416, -0.9330, -0.9239, -0.9143,
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16 -0.9040, -0.8933, -0.8820, -0.8701, -0.8578, -0.8449,
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17 -0.8315, -0.8176, -0.8033, -0.7884, -0.7731, -0.7573,
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18 -0.7410, -0.7243, -0.7072, -0.6896, -0.6716, -0.6533,
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19 -0.6345, -0.6153, -0.5958, -0.5759, -0.5557, -0.5351,
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20 -0.5142, -0.4930, -0.4715, -0.4497, -0.4277, -0.4054,
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21 -0.3828, -0.3600, -0.3370, -0.3138, -0.2904, -0.2668,
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22 -0.2431, -0.2192, -0.1952, -0.1711, -0.1469, -0.1225,
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23 -0.0982, -0.0737, -0.0492, -0.0247, /* Cos */ -0.0001, 0.0244, /* 90 */
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24 0.0489, 0.0734, 0.0979, 0.1223, 0.1466, 0.1708,
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25 0.1949, 0.2190, 0.2428, 0.2666, 0.2901, 0.3135,
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26 0.3367, 0.3598, 0.3825, 0.4051, 0.4274, 0.4495,
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27 0.4713, 0.4928, 0.5140, 0.5349, 0.5554, 0.5757,
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28 0.5956, 0.6151, 0.6343, 0.6531, 0.6714, 0.6894,
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29 0.7070, 0.7241, 0.7408, 0.7571, 0.7729, 0.7882,
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30 0.8031, 0.8175, 0.8314, 0.8448, 0.8576, 0.8700,
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31 0.8818, 0.8931, 0.9039, 0.9141, 0.9238, 0.9329,
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32 0.9415, 0.9495, 0.9569, 0.9637, 0.9700, 0.9757,
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33 0.9808, 0.9852, 0.9891, 0.9925, 0.9952, 0.9973,
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34 0.9988, 0.9997, 1.0000, 0.9997, 0.9988, 0.9973, /* 180 */
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35 0.9952, 0.9925, 0.9892, 0.9853, 0.9808, 0.9757,
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36 0.9700, 0.9638, 0.9569, 0.9495, 0.9415, 0.9330,
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37 0.9239, 0.9142, 0.9040, 0.8932, 0.8819, 0.8701,
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38 0.8577, 0.8449, 0.8315, 0.8176, 0.8032, 0.7884,
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39 0.7730, 0.7572, 0.7410, 0.7243, 0.7071, 0.6896,
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40 0.6716, 0.6532, 0.6344, 0.6153, 0.5957, 0.5758,
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41 0.5556, 0.5350, 0.5141, 0.4929, 0.4714, 0.4496,
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42 0.4276, 0.4053, 0.3827, 0.3599, 0.3369, 0.3137,
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43 0.2903, 0.2667, 0.2430, 0.2191, 0.1951, 0.1710,
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44 0.1468, 0.1225, 0.0981, 0.0736, 0.0491, 0.0246,
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45 0.0000, -0.0245, -0.0490, -0.0735, -0.0980, -0.1224, /* 270 */
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46 -0.1467, -0.1709, -0.1950, -0.2190, -0.2429, -0.2667,
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47 -0.2902, -0.3136, -0.3368, -0.3598, -0.3826, -0.4052,
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48 -0.4275, -0.4496, -0.4713, -0.4928, -0.5140, -0.5349,
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49 -0.5555, -0.5758, -0.5956, -0.6152, -0.6343, -0.6531,
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50 -0.6715, -0.6895, -0.7071, -0.7242, -0.7409, -0.7572,
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51 -0.7730, -0.7883, -0.8032, -0.8175, -0.8314, -0.8448,
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52 -0.8577, -0.8700, -0.8819, -0.8932, -0.9040, -0.9142,
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53 -0.9238, -0.9330, -0.9415, -0.9495, -0.9569, -0.9638,
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54 -0.9700, -0.9757, -0.9808, -0.9853, -0.9892, -0.9925,
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55 -0.9952, -0.9973, -0.9988, -0.9997, /* }; */
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56 /*
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57 double Cos[] = {
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58 0.0000, 0.0245, 0.0491, 0.0736, 0.0980, 0.1224,
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59 0.1467, 0.1710, 0.1951, 0.2191, 0.2430, 0.2667,
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60 0.2903, 0.3137, 0.3369, 0.3599, 0.3827, 0.4052,
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61 0.4275, 0.4496, 0.4714, 0.4929, 0.5141, 0.5350,
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62 0.5556, 0.5758, 0.5957, 0.6152, 0.6344, 0.6532,
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63 0.6715, 0.6895, 0.7071, 0.7242, 0.7409, 0.7572,
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64 0.7730, 0.7883, 0.8032, 0.8176, 0.8315, 0.8448,
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65 0.8577, 0.8701, 0.8819, 0.8932, 0.9040, 0.9142,
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66 0.9239, 0.9330, 0.9415, 0.9495, 0.9569, 0.9638,
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67 0.9700, 0.9757, 0.9808, 0.9853, 0.9892, 0.9925,
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68 0.9952, 0.9973, 0.9988, 0.9997, 1.0000, 0.9997,
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69 0.9988, 0.9973, 0.9952, 0.9925, 0.9892, 0.9853,
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70 0.9808, 0.9757, 0.9700, 0.9638, 0.9570, 0.9495,
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71 0.9416, 0.9330, 0.9239, 0.9142, 0.9040, 0.8933,
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72 0.8819, 0.8701, 0.8578, 0.8449, 0.8315, 0.8176,
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73 0.8032, 0.7884, 0.7731, 0.7573, 0.7410, 0.7243,
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74 0.7072, 0.6896, 0.6716, 0.6532, 0.6344, 0.6153,
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75 0.5958, 0.5759, 0.5556, 0.5351, 0.5142, 0.4930,
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76 0.4715, 0.4497, 0.4276, 0.4053, 0.3828, 0.3600,
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77 0.3370, 0.3138, 0.2904, 0.2668, 0.2431, 0.2192,
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78 0.1952, 0.1710, 0.1468, 0.1225, 0.0981, 0.0737,
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79 0.0492, 0.0246, 0.0001, -0.0244, -0.0490, -0.0735,
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80 -0.0979, -0.1223, -0.1466, -0.1709, -0.1950, -0.2190,
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81 -0.2429, -0.2666, -0.2902, -0.3136, -0.3368, -0.3598,
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82 -0.3826, -0.4051, -0.4275, -0.4495, -0.4713, -0.4928,
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83 -0.5140, -0.5349, -0.5555, -0.5757, -0.5956, -0.6151,
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84 -0.6343, -0.6531, -0.6715, -0.6895, -0.7070, -0.7242,
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85 -0.7409, -0.7571, -0.7729, -0.7883, -0.8031, -0.8175,
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86 -0.8314, -0.8448, -0.8577, -0.8700, -0.8819, -0.8932,
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87 -0.9039, -0.9142, -0.9238, -0.9329, -0.9415, -0.9495,
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88 -0.9569, -0.9637, -0.9700, -0.9757, -0.9808, -0.9853,
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89 -0.9892, -0.9925, -0.9952, -0.9973, -0.9988, -0.9997,
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90 */
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91
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92 -1.0000, -0.9997, -0.9988, -0.9973, -0.9952, -0.9925,
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93 -0.9892, -0.9853, -0.9808, -0.9757, -0.9701, -0.9638,
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94 -0.9570, -0.9496, -0.9416, -0.9330, -0.9239, -0.9143,
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95 -0.9041, -0.8933, -0.8820, -0.8702, -0.8578, -0.8449,
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96 -0.8316, -0.8177, -0.8033, -0.7884, -0.7731, -0.7573,
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97 -0.7411, -0.7244, -0.7072, -0.6897, -0.6717, -0.6533,
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98 -0.6345, -0.6154, -0.5958, -0.5759, -0.5557, -0.5351,
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99 -0.5142, -0.4930, -0.4715, -0.4498, -0.4277, -0.4054,
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100 -0.3828, -0.3601, -0.3371, -0.3138, -0.2905, -0.2669,
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101 -0.2432, -0.2193, -0.1953, -0.1711, -0.1469, -0.1226,
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102 -0.0982, -0.0737, -0.0493, -0.0247};
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103
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104 #define WINSIDE 500
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105 extern int blk_gwidth;
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106 extern float blk_windgwidth;
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107
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108 void
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109 inittrigtables()
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110 {
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111 Cos = Sin + 64;
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112 blk_gwidth = 100000;
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113 blk_windgwidth = ((float) WINSIDE) / blk_gwidth;
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114 }