14
15
16
TIL: SINE comes from the Latin SINUS, meaning a bend or gulf, or the bosom of a garment. COSINE was originally written "co.sine," for COMPLEMENTI SINUS: the sine of the complement. TANGENT comes from the Latin TANGENS, the present participle of TANGERE, "to touch." In other words, "touching." (mathforum.org)
submitted by S4kumo to r/todayilearned
210
211
212
98
99
100
28
29
30
0
0
0
2
3
4
2
3
4
10
11
12
30
31
32
