Sin()

Accepts an angle in whole degrees and returns its sine from a 360-entry lookup table. Angles outside the range of 0-359 are wrapped to that range. For fractional angles, use ssin().

int input = 1; 

float result = sin(input); 

// result = 0.01745240643728351

Lookup Table

float result = sin_table[(input % 360 + 360) % 360]; // Lookup formula. 

float sin_table[] = //360 
{ 0, 0.01745240643728351, 0.03489949670250097, 0.05233595624294383, 0.0697564737441253, 0.08715574274765816, 0.10452846326765346, 0.12186934340514747, 0.13917310096006544, 0.15643446504023087, 0.17364817766693033, 0.1908089953765448, 0.20791169081775931, 0.224951054343865, 0.24192189559966773, 0.25881904510252074, 0.27563735581699916, 0.29237170472273677, 0.3090169943749474, 0.32556815445715664, 0.3420201433256687, 0.35836794954530027, 0.374606593415912, 0.3907311284892737, 0.40673664307580015, 0.42261826174069944, 0.4383711467890774, 0.45399049973954675, 0.4694715627858908, 0.48480962024633706, 0.49999999999999994, 0.5150380749100542, 0.5299192642332049, 0.5446390350150271, 0.5591929034707469, 0.573576436351046, 0.5877852522924731, 0.6018150231520483, 0.6156614753256582, 0.6293203910498374, 0.6427876096865392, 0.6560590289905072, 0.6691306063588582, 0.6819983600624985, 0.6946583704589972, 0.7071067811865475, 0.7193398003386511, 0.7313537016191705, 0.7431448254773941, 0.754709580222772, 0.766044443118978, 0.7771459614569708, 0.788010753606722, 0.7986355100472928, 0.8090169943749474, 0.8191520442889918, 0.8290375725550417, 0.8386705679454239, 0.848048096156426, 0.8571673007021122, 0.8660254037844386, 0.8746197071393957, 0.8829475928589269, 0.8910065241883678, 0.898794046299167, 0.9063077870366499, 0.9135454576426009, 0.9205048534524403, 0.9271838545667874, 0.9335804264972017, 0.9396926207859083, 0.9455185755993167, 0.9510565162951535, 0.9563047559630354, 0.9612616959383189, 0.9659258262890683, 0.9702957262759965, 0.9743700647852352, 0.9781476007338056, 0.981627183447664, 0.984807753012208, 0.9876883405951378, 0.9902680687415702, 0.992546151641322, 0.9945218953682733, 0.9961946980917455, 0.9975640502598242, 0.9986295347545738, 0.9993908270190958, 0.9998476951563913, 1, 0.9998476951563913, 0.9993908270190958, 0.9986295347545738, 0.9975640502598242, 0.9961946980917455, 0.9945218953682734, 0.9925461516413221, 0.9902680687415704, 0.9876883405951377, 0.984807753012208, 0.981627183447664, 0.9781476007338057, 0.9743700647852352, 0.9702957262759965, 0.9659258262890683, 0.9612616959383189, 0.9563047559630355, 0.9510565162951536, 0.9455185755993168, 0.9396926207859084, 0.9335804264972017, 0.9271838545667874, 0.9205048534524404, 0.913545457642601, 0.90630778703665, 0.8987940462991669, 0.8910065241883679, 0.8829475928589271, 0.8746197071393958, 0.8660254037844387, 0.8571673007021123, 0.8480480961564261, 0.8386705679454239, 0.8290375725550417, 0.819152044288992, 0.8090169943749474, 0.7986355100472927, 0.788010753606722, 0.777145961456971, 0.766044443118978, 0.7547095802227718, 0.7431448254773942, 0.7313537016191706, 0.7193398003386514, 0.7071067811865476, 0.6946583704589971, 0.6819983600624986, 0.6691306063588583, 0.6560590289905073, 0.6427876096865395, 0.6293203910498377, 0.6156614753256584, 0.6018150231520482, 0.5877852522924732, 0.5735764363510464, 0.5591929034707469, 0.544639035015027, 0.5299192642332049, 0.5150380749100544, 0.49999999999999994, 0.48480962024633717, 0.4694715627858911, 0.45399049973954686, 0.4383711467890773, 0.4226182617406995, 0.40673664307580043, 0.39073112848927416, 0.37460659341591223, 0.3583679495453002, 0.3420201433256689, 0.32556815445715703, 0.3090169943749475, 0.29237170472273704, 0.27563735581699966, 0.258819045102521, 0.24192189559966773, 0.22495105434386478, 0.20791169081775931, 0.19080899537654497, 0.17364817766693027, 0.15643446504023098, 0.13917310096006574, 0.12186934340514754, 0.10452846326765373, 0.08715574274765864, 0.06975647374412552, 0.05233595624294381, 0.0348994967025007, 0.01745240643728344, 1.2246063538223772e-16, -0.017452406437283192, -0.0348994967025009, -0.052335956242943564, -0.06975647374412483, -0.08715574274765794, -0.10452846326765305, -0.12186934340514774, -0.13917310096006552, -0.15643446504023073, -0.17364817766693047, -0.19080899537654472, -0.20791169081775906, -0.22495105434386497, -0.2419218955996675, -0.25881904510252035, -0.275637355816999, -0.2923717047227364, -0.30901699437494773, -0.32556815445715675, -0.34202014332566865, -0.35836794954530043, -0.374606593415912, -0.39073112848927355, -0.4067366430757998, -0.4226182617406993, -0.43837114678907707, -0.45399049973954625, -0.46947156278589086, -0.48480962024633694, -0.5000000000000001, -0.5150380749100542, -0.5299192642332048, -0.5446390350150271, -0.5591929034707467, -0.5735764363510458, -0.587785252292473, -0.601815023152048, -0.6156614753256578, -0.6293203910498376, -0.6427876096865392, -0.6560590289905074, -0.6691306063588582, -0.6819983600624984, -0.6946583704589974, -0.7071067811865475, -0.7193398003386509, -0.7313537016191701, -0.743144825477394, -0.7547095802227717, -0.7660444431189779, -0.7771459614569711, -0.7880107536067221, -0.7986355100472928, -0.8090169943749473, -0.8191520442889916, -0.8290375725550414, -0.838670567945424, -0.848048096156426, -0.8571673007021121, -0.8660254037844384, -0.874619707139396, -0.882947592858927, -0.8910065241883678, -0.8987940462991668, -0.9063077870366497, -0.913545457642601, -0.9205048534524403, -0.9271838545667873, -0.9335804264972016, -0.9396926207859082, -0.9455185755993168, -0.9510565162951535, -0.9563047559630353, -0.961261695938319, -0.9659258262890683, -0.9702957262759965, -0.9743700647852351, -0.9781476007338056, -0.9816271834476639, -0.984807753012208, -0.9876883405951377, -0.9902680687415704, -0.9925461516413221, -0.9945218953682734, -0.9961946980917455, -0.9975640502598242, -0.9986295347545738, -0.9993908270190956, -0.9998476951563913, -1, -0.9998476951563913, -0.9993908270190958, -0.9986295347545738, -0.9975640502598243, -0.9961946980917455, -0.9945218953682734, -0.992546151641322, -0.9902680687415704, -0.9876883405951378, -0.9848077530122081, -0.9816271834476641, -0.9781476007338058, -0.9743700647852352, -0.9702957262759966, -0.9659258262890682, -0.9612616959383188, -0.9563047559630354, -0.9510565162951536, -0.945518575599317, -0.9396926207859085, -0.9335804264972021, -0.9271838545667874, -0.9205048534524405, -0.9135454576426008, -0.9063077870366499, -0.898794046299167, -0.8910065241883679, -0.8829475928589271, -0.8746197071393961, -0.8660254037844386, -0.8571673007021123, -0.8480480961564262, -0.8386705679454243, -0.8290375725550421, -0.8191520442889918, -0.8090169943749476, -0.798635510047293, -0.7880107536067218, -0.7771459614569708, -0.7660444431189781, -0.7547095802227722, -0.7431448254773946, -0.731353701619171, -0.7193398003386517, -0.7071067811865477, -0.6946583704589976, -0.6819983600624982, -0.6691306063588581, -0.6560590289905074, -0.6427876096865396, -0.6293203910498378, -0.6156614753256588, -0.6018150231520483, -0.5877852522924734, -0.5735764363510465, -0.5591929034707473, -0.544639035015027, -0.5299192642332058, -0.5150380749100545, -0.5000000000000004, -0.4848096202463369, -0.4694715627858908, -0.45399049973954697, -0.438371146789077, -0.4226182617407, -0.40673664307580015, -0.3907311284892747, -0.37460659341591235, -0.35836794954530077, -0.3420201433256686, -0.32556815445715753, -0.3090169943749476, -0.29237170472273627, -0.2756373558169998, -0.2588190451025207, -0.24192189559966787, -0.22495105434386534, -0.20791169081775987, -0.19080899537654466, -0.17364817766693127, -0.1564344650402311, -0.13917310096006588, -0.12186934340514811, -0.10452846326765341, -0.08715574274765832, -0.06975647374412476, -0.05233595624294437, -0.034899496702500823, -0.01745240643728445 };