TABLES RELATING TO PARTS I AND II 223 
TANGENTS, AND COTANGENTS 
Angle 
Sin. 
D. V 
Cos. 
D. V 
Tan. 
D. V 
Cot. 
7° 30' 
9.1157 
9.5 
9.3 
9.1 
8.9 
8.7 
8.5 
8.4 
8.2 
8.0 
9.9963 
.2 
.2 
.1 
.2 
.2 
.2 
.2 
.2 
.2 
9.1194 
9.7 
9.4 
9.3 
9.1 
8.9 
8.7 
8.6 
8.4 
8.2 
8.1 
8.0 
7.8 
7.7 
7.6 
7.4 
7.3 
7.3 
7.1 
7.0 
6.9 
6.8 
6.6 
6.7 
6.5 
6.4 
6.3 
6.3 
6.1 
6.1 
6.1 
5.9 
5.9 
5.8 
5.7 
5.7 
5.6 
5.5 
5.5 
5.4 
0.8806 
82° 
30' 
7° 40' 
.1252 
.9961 
.1291 
.8709 
82° 
20' 
7° 50' 
.1345 
.9959 
.1385 
.8615 
82° 
10' 
' 8° O' 
9.1436 
9.9958 
9.1478 
0.8522 
82° 
0' 
8° 10' 
.1525 
.9956 
.1569 
.8431 
81° 
50' 
8° 20' 
.1612 
.9954 
.1658 
.8342 
81° 
40' 
8° 30' 
.1697 
.9952 
.1745 
.8255 
81° 
30' 
8° 40' 
.1781 
.9950 
.1831 
.8169 
81° 
20' 
8° 50' 
.1863 
.9948 
.1915 
.8085 
81° 
10' 
9° 0' 
9.1943 
9.9946 
9.1997 
0.8003 
81° 
0' 
7.9 
7.8 
7.6 
7.5 
7.3 
7.3 
7.1 
7.0 
6.8 
6.8 
6.6 
6.6 
6.4 
6.4 
.2 
.2 
o 
9° 10' 
.2022 
.9944 
.2078 
.7922 
80° 
50' 
9° 20' 
.2100 
.9942 
.2158 
.7842 
80° 
40' 
9° 30' 
.2176 
.9940 
.2 
.2 
.2 
.3 
.2 
.2 
.3 
.2 
.3 
.2 
.3 
.2 
.3 
.2 
.3 
.3 
.2 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.4 
.3 
.3 
.4 
.2236 
.7764 
S0° 
30' 
9° 40' 
.2251 
.9938 
.2313 
.7687 
80° 
20' 
9° 50' 
.2324 
.9936 
.2389 
.7611 
80° 
10' 
10° 0' 
9.2397 
9.9934 
9.2463 
0.7537 
80° 
0' 
10° 10' 
.2468 
.9931 
.2536 
.7464 
79° 
50' 
10° 20' 
.2538 
.9929 
.2609 
.7391 
79° 
40' 
10° 30' 
.2606 
.9927 
.2680 
.7320 
79° 
30' 
10° 40' 
.2674 
.9924 
.2750 
.7250 
79° 
20' 
10° 50' 
.2740 
.9922 
.2819 
.7181 
79° 
10' 
11° 0' 
9.2806 
9.9919 
9.2887 
0.7113 
79° 
0' 
11° 10' 
.2870 
.9917 
.2953 
.7047 
78° 
50' 
11° 20' 
.2934 
.9914 
.3020 
.6980 
78° 
40' 
11° 30' 
.2997 
6.3 
.9912 
.30S5 
.6915 
78° 
30' 
11° 40' 
.3058 
6.1 
.9909 
.3149 
.6851 
78° 
.20' 
11° 50' 
.3119 
6.1 
6.0 
.9907 
.3212 
6788 
78° 
10' 
O 
O 
9.3179 
9.9904 
9.3275 
0.6725 
78° 
0' 
12° 10' 
.3238 
5.9 
.9901 
.3336 
.6664 
77° 
50' 
12° 20' 
.3296 
5.8 
5.7 
5.7 
5.6 
.9899 
.3397 
.6603 
77° 
40' 
12° 30' 
.3353 
.9896 
.3458 
.6542 
77° 
30' 
12° 40' 
.3410 
.9893 
.3517 
.6483 
77° 
20' 
12° 50' 
.3466 
.9890 
.3576 
.6424 
77° 
10' 
13° 0' 
9.3521 
5.5 
5.4 
5.4 
5.3 
5.2 
5.2 
5.1 
5.0 
5.0 
4.9 
4.9 
4.8 
4.7 
9.9887 
9.3634 
0.6366 
77° 
0' 
13° 10' 
.3575 
.9884 
.3691 
.6309 
76° 
50' 
13° 20' 
.3629 
.9881 
.3748 
.6252 
76° 
40' 
13° 30' 
.3682 
.9878 
.3804 
.6196 
76° 
30' 
13° 40' 
.3734 
.9875 
.3859 
.6141 
76° 
20' 
13° 50' 
.3786 
.9872 
.3914 
.6086 
76° 
10' 
14° 0' 
9.3837 
9.9869 
9.3968 
0.6032 
76° 
0' 
14° 10' 
.3887 
.9866 
.4021 
b.o 
5.3 
5.3 
5.1 
5.2 
5.1 
.5979 
75° 
50' 
14° 20' 
.3937 
.9863 
.4074 
.5926 
75° 
40' 
14° 30' 
.3986 
.9859 
.4127 
.5873 
75° 
30' 
14° 40' 
.4035 
.9856 
.4178 
.5822 
75° 
20' 
14 9 50' 
.4083 
.9853 
.4230 
5770 
75° 
10' 
15° 0' 
9.4130 
9.9849 
9.4281 
0.5719 
75° 
0' 
Cos. 
p.r 
Sin. 
D. V 
Cot. 
D. V 
Tan. 
Angle 
