Memes

45550 readers

1379 users here now

Rules:

Be civil and nice.
Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you have to.

founded 5 years ago

MODERATORS

[email protected]

877

Trig (lemmy.world)

submitted 10 months ago by [email protected] to c/[email protected]

169 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 10 months ago (1 children)

Right, but why bring theta into it at all? TV screens are as a hypotenuse (a²+b²) with a fixed ratio (a/b=16/9), so you just need to solve for a and b.

[–] [email protected] 1 points 10 months ago* (last edited 10 months ago) (1 children)

You don't have to, but it seems perfectly easy since you don't have to write anything down to solve it. c*sin(arctan(b/a)) gives b, and c*cos(arctan(b/a)) gives a. I'm not disputing that you can do it without, but I don't think it's necessarily any quicker or easier.

[–] [email protected] 2 points 10 months ago

If it works it works. I just never would have thought to do it that way.