三角函数值(三角函数计算方法和快速查找表)
三角函数关系
(正弦)正弦=对边α/斜边β
(余弦)Cos =邻边B/斜边c
(正切)Tan =相对侧A/相邻侧b
对边A =斜边C * Sin
相对侧A =相邻侧B * Tan
相邻B =斜边C * Cos
相邻B =相对A/Tan
斜面C =反面A/Sin
倾斜侧C =相邻侧B/Cos
例:给定斜边C=20，角度=35度，求对边A和邻边b 。
A =斜边c * sin = 20 * sin(35)= 20 * 0.573576 = 11.471
相邻B =斜边c * cos = 20 * cos(35)= 20 * 0.81915 = 16.383
普通车床锥度与三角函数的关系
锥度比T=(大直径D-小直径d)/(长度l)
Tan=(大直径D-小直径d)/(2*长度l)
D= d 2*L* Tan
d= D - 2*L* Tan
= Tan - ( (D-d) / 2L)
这里我们从不同角度给大家提供sin、cos、tan的表值，准确度也很高 。我相信它对你有用 。
sin 1 = 0.01745240643728351 sin 2 = 0.03489949670250097 sin 3 = 0.0523595624294383
sin 4 = 0.0697564737441253 sin 5 = 0.08715574274765816 sin 6 = 0.1045284632676
sin 7 = 0.12186934340514747 sin 8 = 0.13917310096006544 sin 9 = 0.15643446504023087
sin 10 = 0.1736481776693033 sin 11 = 0.1908089953765448 sin 12 = 0.19080808995
sin 13 = 0.22495105434386497 sin 14 = 0.24192189559966773 sin 15 = 0.24192189595
sin 16 = 0.27563735581699916 sin 17 = 0.2923717047227367 sin 18 = 0.2923717 . 29237227367
sin 19 = 0.3255681544571567 sin 20 = 0.3420201433256687 sin 21 = 0.35832566687
sin 22 = 0.374606593415912 sin 23 = 0.3907311284892737 sin 24 = 0.40758015
sin 25 = 0.42261826174069944 sin 26 = 0.4383711467890774 sin 27 = 0.43837114674
sin 28 = 0.4694715627858908 sin 29 = 0.48480962024633706 sin 30 = 0.49999999994
sin 31 = 0.5150380749100542 sin 32 = 0.5299192642332049 sin 33 = 0.54299192027
sin 34 = 0.5591929034707468 sin 35 = 0.573576436351046 sin 36 = 0.58773577461
sin 37 = 0.6018150231520483 sin 38 = 0.6156614753256583 sin 39 = 0.61566614775
sin 40 = 0.6427876096865392 sin 41 = 0.656059028905073 sin 42 = 0.65688582
sin 43 = 0.6819983600624985 sin 44 = 0.6946583704589972 sin 45 = 0.7071865475
sin 46 = 0.7193398003386511 sin 47 = 0.7313537016191705 sin 48 = 0.731919191705
sin 49 = 0.7547095802227719 sin 50 = 0.76604443118978 sin 51 = 0.77771897885
sin 52 = 0.7880107536067219 sin 53 = 0.7986355100472928 sin 54 = 0.79886355104
sin 55 = 0.8191520442889918 sin 56 = 0.829037572550417 sin 57 = 0.83889919
sin 58 = 0.848048096156426 sin 59 = 0.8571673007021122 sin 60 = 0.857167167307
sin 61 = 0.8746197071393957 sin 62 = 0.8829475928589269 sin 63 = 0.891883678
sin 64 = 0.898794046299167 sin 65 = 0.9063077870366499 sin 66 = 0.9135454576426
sin 67 = 0.9205048534524404 sin 68 = 0.9271838545667873 sin 69 = 0.937183854404
sin 70 = 0.9396926207859083 sin 71 = 0.9455185755993167 sin 72 = 0.94555518575
sin 73 = 0.9563047559630354 sin 74 = 0.9612616959383189 sin 75 = 0.961261690683
sin 76 = 0.9702957262759965 sin 77 = 0.9743700647852352 sin 78 = 0.974338057
sin 79 = 0.981627183447664 sin 80 = 0.984807753012208 sin 81 = 0.98768888888
sin 82 = 0.9902680687415704 sin 83 = 0.992546151641322 sin 84 = 0.992541641322
sin 85 = 0.9961946980917455 sin 86 = 0.9975640502598242 sin 87 = 0.9998242 sin 87 = 0.99982455738
sin 88 = 0.9993908270190958 sin 89 = 0.99999999995
sin90=1
cos1 = 0.9998476951563913 cos2 = 0.9993908270190958 cos3 = 0.9993913 cos3 = 0.99999958
cos4 = 0.9975640502598242 cos5 = 0.9961946980917455 cos6 = 0.99961946985
cos7 = 0.992546151641322 cos8 = 0.9902680687415704 cos9 = 0.98761328
cos10 = 0.984807753012208 cos11 = 0.981627183447664 cos12 = 0.97812208
cos13 = 0.9743700647852352 cos14 = 0.9702957262759965 cos15 = 0.9659599683
cos16 = 0.9612616959383189 cos17 = 0.956304759630355 cos18 = 0.95630355 cos18 = 0.9563189 cos16 = 0.95630475
cos19 = 0.9455185755993168 cos20 = 0.9396926207859084 cos21 = 0.9396962017
cos22 = 0.9271838545667874 cos23 = 0.9205048534524404 cos24 = 0.91838544404
cos25 = 0.9063077870366499 cos26 = 0.898794046299167 cos27 = 0.8983679
cos28 = 0.882947592858927 cos29 = 0.8746197071393957 cos30 = 0.8666025957
cos31 = 0.8571673007021123 cos32 = 0.848048096156426 cos33 = 0.8480480424
cos34 = 0.829037572550417 cos35 = 0.819152044288918 cos36 = 0.81915204288
cos37 = 0.7986355100472928 cos38 = 0.7880107536067219 cos39 = 0.77772929
cos40 = 0.766044443118978 cos41 = 0.75470958022772 cos42 = 0.75444444442
cos43 = 0.7313537016191705 cos44 = 0.7193398003386512 cos45 = 0.71865476
cos46 = 0.6946583704589974 cos47 = 0.6819983600624985 cos48 = 0.68199836006
cos49 = 0.6560590289905074 cos50 = 0.6427876096865394 cos51 = 0.64298375
cos52 = 0.6156614753256583 cos53 = 0.6018150231520484 cos54 = 0.58777484
cos55 = 0.5735764363510462 cos56 = 0.5591929034707468 cos57 = 0.55444444461
cos58 = 0.5299192642332049 cos59 = 0.5150380749100544 cos60 = 0.500000000000000001
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