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1.1 ! root 1: static ! 2: short costab[91]={ ! 3: 10000, 9998, 9993, 9986, 9975, ! 4: 9961, 9945, 9925, 9902, 9876, ! 5: 9848, 9816, 9781, 9743, 9702, ! 6: 9659, 9612, 9563, 9510, 9455, ! 7: 9396, 9335, 9271, 9205, 9135, ! 8: 9063, 8987, 8910, 8829, 8746, ! 9: 8660, 8571, 8480, 8386, 8290, ! 10: 8191, 8090, 7986, 7880, 7771, ! 11: 7660, 7547, 7431, 7313, 7193, ! 12: 7071, 6946, 6819, 6691, 6560, ! 13: 6427, 6293, 6156, 6018, 5877, ! 14: 5735, 5591, 5446, 5299, 5150, ! 15: 5000, 4848, 4694, 4539, 4383, ! 16: 4226, 4067, 3907, 3746, 3583, ! 17: 3420, 3255, 3090, 2923, 2756, ! 18: 2588, 2419, 2249, 2079, 1908, ! 19: 1736, 1564, 1391, 1218, 1045, ! 20: 871, 697, 523, 348, 174, ! 21: 0, ! 22: }; ! 23: ! 24: pcos(x) ! 25: register x; ! 26: { ! 27: x %= 360; ! 28: while(x<0) ! 29: x+=360; ! 30: if(x<=180) ! 31: return(x<90? costab[x] : -costab[180-x]); ! 32: return(x<180+90? -costab[x-180] : costab[360-x]); ! 33: } ! 34: ! 35: psin(x) ! 36: register x; ! 37: { ! 38: return(pcos(x-90)); ! 39: } ! 40: ! 41: Psin(x) ! 42: register x; ! 43: { ! 44: return(Pcos(x-9000)); ! 45: } ! 46: ! 47: Pcos(x) ! 48: register x; ! 49: { ! 50: register int a = x/100; ! 51: register int b = x%100; ! 52: register int c = pcos(a); ! 53: register int d = pcos(a+1); ! 54: ! 55: a = c + (b*(d-c))/100; ! 56: return a; ! 57: }
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