三角函数的关系

(正弦)Sin θ =对边A/斜边c

(余弦)Cosθ =邻边B/斜边c

(正切)Tanθ =对边A/邻边b。

对边A =斜边C * Sinθ

对边A =邻边B * Tanθ

邻边B =斜边C * Cosθ

邻边B =对边A/Tanθ

C =相对侧A/Sinθ

C =邻边B/Cosθ

例:给定斜边C = 20，角θ=35度，求对边A和邻边b。

对边A =斜边c * sinθ= 20 * sin(35)= 20 * 0.573576 = 11.471

邻边B =斜边c * cosθ= 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)

Tanθ=(大直径D-小直径d)/(2*长度L)

D= d 2*L* Tanθ

d= D - 2*L* Tanθ

θ= Tan - ( (D-d) / 2L)

这里给你提供sin，cos，tan不同角度的表值，准确度也很高。相信对你有用。

sin 1 = 0.01745240***3728351 sin 2 = 0.0348999 4967025 50097 sin 3 = 0.

sin 4 = 0.06975***737441253 sin 5 = 0.087155757 4274776 sin 6 = 0.

sin 7 = 0.121869343440514747 sin 8 = 0.13917310096

sin 10 = 0.173***817766693033 sin 11 = 0.19080899537

sin 13 = 0.2249510543438***97 sin 14 = 0.24192***5 59996673 sin 15 = 0.

sin 16 = 0.275637355816999916 sin 17 = 0.2923717047 72277 sin 18 = 0.

sin 19 = 0.3255681544571567 sin 20 = 0.34202014335

sin 22 = 0.374606593415912 sin 23 = 0.3907311284 892737 sin 24 = 0.

sin 25 = 0.42261826174069944 sin 26 = 0.43837114678 90774 sin 27 = 0.

sin 28 = 0.4694715627858908 sin 29 = 0.4848809

sin 31 = 0.5150380749100542 sin 32 = 0.52991929 ***2333 2049 sin 33 = 0.

sin34 = 0.5591929034707468

sin 37 = 0.6018150231520483 sin 38 = 0.6156666 1475325 6583 sin 39 = 0.

sin 40 = 0.***27876096865392 sin 41 = 0.656605565

sin 43 = 0.6819983600624985 sin 44 = 0.69465865

sin 46 = 0.7193398003386511 sin 47 = 0.731353535

sin 49 = 0.7547095802227719 sin 50 = 0.76604444431 ***78 sin 51 = 0.

sin 52 = 0.7880107536067219 sin 53 = 0.79863555104 72928 sin 54 = 0.

sin 55 = 0.8191520442889918 sin 56 = 0.82903757555 50417 sin 57 = 0.

sin 58 = 0.84804809615***26 sin 59 = 0.857167767

sin 61 = 0.8746197071393957 sin 62 = 0.88294758

sin *** = 0.898794046299167 sin 65 = 0.90630778783

sin 67 = 0.92050485345244404 sin 68 = 0.9271838545

sin 70 = 0.9396926207859083 sin 71 = 0.945551855

sin 73 = 0.9563047559630354 sin 74 = 0.9612661695

sin 76 = 0.9702957262759965 sin 77 = 0.974377700***

sin 79 = 0.9816271834476*** sin 80 = 0.984807753012 208 sin 81 = 0 . 46776

sin 82 = 0.9902680687415704 sin 83 = 0.999254***6

sin 85 = 0.9961946980917455 sin 86 = 0.99975***9

sin88 = 0.9993908270190958

sin90=1

cos 1 = 0.9998476951563913 cos 2 = 0.999939999982705

cos 4 = 0.9975***0502598242 cos 5 = 0.999619469 8091745 cos 6 = 0.

cos 7 = 0.992546151***1322 cos 8 = 0.9990268068745

cos10 = 0.984807753012208 cos11 = 0.981627183447

cos13 = 0.9743700***7852352

cos16 = 0.9612616959383*** cos17 = 0.95630475596

cos19 = 0.9455185755993168 cos20 = 0.93969696

cos22 = 0.9271838545667874 cos23 = 0.92050485345

cos25 = 0.906307787036***99

科斯28=0.882947592858927科斯29=0.8746197071393957科斯30=0.

cos31 = 0.8571673007021123 cos32 = 0.8480480484

cos34 = 0.8290375725550417 cos35 = 0.81915204428895

cos37 = 0.7986355100472928 cos38 = 0.78801075366 67219 cos39 = 0.

cos40 = 0.76604444431***78 cos41 = 0.754709585

cos43 = 0.7313537016191705 cos44 = 0.7193398003 3865

cos46 = 0.6946583704589974 cos47 = 0.68199989

cos49 = 0.6560590289905075 cos50 = 0.***2787686

cos52 = 0.6156614753256583 cos53 = 0.601815150235

cos55 = 0.57357***363510462 cos56 = 0.5591929034

cos58 = 0.5299192***2332049 cos59 = 0.5150380749100544 cos60 = 0.5000000000001

cos61 = 0.4848096202463371 cos62 = 0.4694715675

cos *** = 0.43837114678907746 cos 65 = 0.4226182617406994 cos 66 = 0.

cos67 = 0.3907311284892737 cos68 = 0.374606593415 9122 cos69 = 0.

cos70 = 0.3420201433256688 cos71 = 0.325568568

cos 73 = 0.29237170472273677 cos 74 = 0.2756375635 581699 916 cos 75 = 0.

cos 76 = 0.24192***559966767 cos 77 = 0.2249510543434 3865

cos79 = 0.19080899537654491 cos80 = 0.173***8766 69304

cos 82 = 0.13917310096006546 cos 83 = 0.121869343405144

cos 85 = 0.08715574274765836 cos 86 = 0.069756757

cos88 = 0.03489949670250108

cos90=0

tan 1 = 0.0174550***928217585 tan 2 = 0.034920769 491747

tan 4 = 0.06992681194351041 tan 5 = 0.0874888886 635259 2401 tan 6 = 0.

tan 7 = 0.1227845609029046 tan 8 = 0.140540834702

tan 10 = 0.1763269807084***97 tan 11 = 0.19438030913771848 tan 12 = 0.19486

tan 13 = 0.2308681911255631 tan 14 = 0.24932800284 318068 tan 15 = 0.

tan 16 = 0.2867453857588079 tan 17 = 0.305733057

tan 19 = 0.34432761328966527 tan 20 = 0.363970234 tan 21 = 0.

tan 22 = 0.4040262258351568 tan 23 = 0.4244748209 6047 tan 24 = 0.

tan 25 = 0.4663076581549986 tan 26 = 0.48773258856

tan 28 = 0.5317094316614788 tan 29 = 0.554309054

tan 31 = 0.6008606190275604 tan 32 = 0.62486939

tan 34 = 0.6745085168424265 tan 35 = 0.700207538 209709

tan 37 = 0.7535540501027942 tan 38 = 0.781288585 6265067 74 tan 39 = 0.

tan 40 = 0.8390996311772799 tan 41 = 0.86928628686

tan 43 = 0.9325150861376618 tan 44 = 0.965668887487

tan 46 = 1.0355303137905693 tan 47 = 1.072368768

tan 49 = 1.1503684072210092 tan 50 = 1.191753595

tan 52 = 1.2799416321930785 tan 53 = 1.3274482624

tan 55 = 1.4281480067421144 tan 56 = 1.4825609685

tan58 = 1.6003345290410506

tan 61 = 1.8040477552714235 tan 62 = 1.88872******

tan *** = 2.050303841579296 tan 65 = 2.144569205

tan 67 = 2.355852365823753 tan 68 = 2.4778688685

tan 70 = 2.7474774194546216 tan 71 = 2.9021087767

谭73 = 3.27085261848414084

谭76 = 4.01078093353584557

tan 79 = 5.144554015970307 tan 80 = 5.67281819617

tan 82 = 7.115369722384207 tan 83 = 8.1444***27974

tan 85 = 11.43005230276132 tan 86 = 14.306666662567

tan 88 = 28.688888888891

Tan90=(无穷大)

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