Page:Practical Treatise on Milling and Milling Machines.djvu/319

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Brown & Sharpe Mfg. Co.
313

NATURAL TANGENTS AND COTANGENTS

′ 20° 21° 22° 23° 24° ′
Tang Cotang Tang Cotang Tang Cotang Tang Cotang Tang Cotang
0 .36397 2.74748 .38386 2.60509 .40403 2.47509 .42447 2.35585 .44523 2.24604 60
1 .36430 2.74499 .38420 2.60283 .40436 2.47302 .42482 2.35395 .44558 2.24428 59
2 .36463 2.74251 .38453 2.60057 .40470 2.47095 .42516 2.35205 .44593 2.24252 58
3 .36406 2.74004 .38487 2.59831 .40504 2.46888 .42551 2.35015 .44627 2.24077 57
4 .36529 2.73756 .38520 2.59606 .40538 2.46682 .42585 2.34825 .44662 2.23902 56
5 .36562 2.73509 .38553 2.59381 .40572 2.46476 .42619 2.34636 .44697 2.23727 55
6 .36595 2.73263 .38587 2.59156 .40606 2.46270 .42654 2.34447 .44732 2.23553 54
7 .36628 2.73017 .38620 2.58932 .40640 2.46065 .42688 2.34258 .44767 2.23378 53
8 .36661 2.72771 .38654 2.58708 .40674 2.45860 .42722 2.34069 .44802 2.23204 52
9 .36694 2.72526 .38687 2.58484 .40707 2.45655 .42757 2.33881 .44837 2.23030 51
10 .36727 2.72281 .38721 2.58261 .40741 2.45451 .42791 2.33693 .44872 2.22857 50
11 .36760 2.72036 .38754 2.58038 .40775 2.45246 .42826 2.33505 .44007 2.22683 49
12 .36793 2.71792 .38787 2.57815 .40809 2.45043 .42860 2.33317 .44942 2.22510 48
13 .36826 2.71548 .38821 2.57593 .40843 2.44839 .42894 2.33130 .44977 2.22337 47
14 .36859 2.71305 .38854 2.57371 .40877 2.44636 .42929 2.32943 .45012 2.22164 46
15 .36892 2.71062 .38888 2.57150 .40911 2.44433 .42963 2.32756 .45047 2.21992 45
16 .36925 2.70819 .38921 2.56928 .40945 2.44230 .42998 2.32570 .45082 2.21819 44
17 .36958 2.70577 .38955 2.56707 .40979 2.44027 .43032 2.32383 .45117 2.21647 43
18 .36991 2.70335 .38988 2.56487 .41013 2.43825 .43067 2.32197 .45152 2.21475 42
19 .37024 2.70094 .39022 2.56266 .41047 2.43623 .43101 2.32012 .45187 2.21304 41
20 .37057 2.69853 .39055 2.56046 .41081 2.43422 .43136 2.31826 .45222 2.21132 40
21 .37090 2.69612 .39089 2.55827 .41115 2.43220 .43170 2.31641 .45257 2.20961 39
22 .37123 2.69371 .39122 2.55608 .41149 2.43019 .43205 2.31456 .45292 2.20790 38
23 .37157 2.69131 .39156 2.55389 .41183 2.42819 .43230 2.31271 .45327 2.20619 37
24 .37190 2.68892 .39190 2.55170 .41217 2.42618 .43274 2.31086 .45362 2.20449 36
25 .37223 2.68653 .39223 2.54952 .41251 2.42418 .43308 2.30902 .45397 2.20278 35
26 .37256 2.68414 .39257 2.54734 .41285 2.42218 .43343 2.30718 .45432 2.20108 34
27 .37289 2.68175 .39290 2.54516 .41319 2.42019 .43378 2.30534 .45467 2.19938 33
28 .37322 2.67937 .39324 2.54299 .41353 2.41819 .43412 2.30351 .45502 2.19769 32
29 .37355 2.67700 .39357 2.54082 .41387 2.41620 .43447 2.30167 .45538 2.19599 31
30 .37388 2.67462 .39391 2.53865 .41421 2.41421 .43481 2.29984 .45573 2.19430 30
31 .37423 2.67225 .39425 2.53648 .41455 2.41223 .43516 2.29801 .45608 2.19261 29
32 .37455 2.66989 .39458 2.53432 .41490 2.41025 .43550 2.29619 .45643 2.19092 28
33 .37488 2.66752 .39492 2.53217 .41524 2.40827 .43585 2.29437 .45678 2.18923 27
34 .37521 2.66516 .39526 2.53001 .41558 2.40629 .43620 2.29254 .45713 2.18755 26
35 .37554 2.66281 .39559 2.52786 .41592 2.40432 .43654 2.29073 .45748 2.18587 25
36 .37588 2.66046 .39593 2.52571 .41626 2.40235 .43689 2.28891 .45784 2.18419 24
37 .37621 2.65811 .39626 2.52357 .41660 2.40038 .43724 2.28710 .45819 2.18251 23
38 .37654 2.65576 .39660 2.52142 .41694 2.39841 .43758 2.23528 .45854 2.18084 22
39 .37687 2.65342 .39694 2.51929 .41728 2.39645 .43793 2.28348 .45889 2.17916 21
40 .37720 2.65109 .39727 2.51715 .41763 2.39449 .43828 2.28167 .45924 2.17749 20
41 .37754 2.64875 .39761 2.51502 .41797 2.39253 .43862 2.27987 .45960 2.17582 19
42 .37787 2.64642 .39795 2.51289 .41831 2.39058 .43897 2.27806 .45995 2.17416 18
43 .37820 2.64410 .39829 2.51076 .41865 2.38863 .43932 2.27616 .46030 2.17249 17
44 .37853 2.64177 .39862 2.50864 .41809 2.38668 .43966 2.27447 .46065 2.17083 16
45 .37887 2.63945 .39896 2.50652 .41933 2.38473 .44001 2.27267 .46101 2.16917 15
46 .37920 2.63714 .39930 2.50440 .41968 2.38279 .44036 2.27088 .46136 2.16751 14
47 .37953 2.63483 .39963 2.50229 .42002 2.38084 .44071 2.26909 .46171 2.16585 13
48 .37986 2.63252 .39997 2.50018 .42036 2.37891 .44105 2.26730 .46206 2.16420 12
49 .38020 2.63021 .40031 2.49807 .42070 2.37697 .44140 2.26552 .46242 2.16255 11
50 .38053 2.62791 .40065 2.49597 .42105 2.37504 .44175 2.26374 .46277 2.l6090 10
51 .38086 2.62561 .40098 2.49386 .42139 2.37311 .44210 2.26196 .46312 2.15925 9
52 .38120 2.62332 .40132 2.49177 .42173 2.37118 .44244 2.26018 .46348 2.15760 8
53 .38153 2.62103 .40166 2.48967 .42207 2.36925 .44279 2.25840 .46383 2.15596 7
54 .38186 2.61874 .40200 2.48758 .42242 2.36733 .44314 2.25663 .46418 2.15432 6
55 .36220 2.61646 .40234 2.48549 .42276 2.36541 .44349 2.25486 .46454 2.15268 5
56 .38253 2.61418 .40267 2.48340 .42310 2.36349 .44384 2.25309 .46489 2.15104 4
57 .38286 2.61190 .40301 2.48132 .42345 2.36158 .44418 2.25132 .46525 2.14940 3
58 .38320 2.60963 .40335 2.47924 .42379 2.35967 .44453 2.24956 .46560 2.14777 2
59 .38353 2.60736 .40369 2.47716 .42413 2.35776 .44488 2.24780 .46595 2.14614 1
60 .38386 2.60509 .40403 2.47509 .42447 2.35585 .44523 2.24604 .46631 2.14451 0
′ Cotang Tang Cotang Tang Cotang Tang Cotang Tang Contang Tang ′
69° 68° 67° 66° 65°
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