this post was submitted on 22 Aug 2024
10 points (81.2% liked)

A place for everything about math

902 readers
1 users here now

founded 5 years ago
MODERATORS
antimatroid@lemmy.ml
10
My mnemonic for remembering trig values (lemmy.ml)
submitted 3 months ago by SubArcticTundra@lemmy.ml to c/math@lemmy.ml
3 comments fedilink hide all child comments
 

(For the sake of intuition, 1/โˆš0=0)

you are viewing a single comment's thread
view the rest of the comments
[โ€“] Rentlar@lemmy.ca 4 points 3 months ago

My trick for this was:

0  30  45  60  90 deg
---------------------------
0  1   2   3   4

Sine function of the top equals half the square root of the bottom number. Cosine is just in reverse order.