#finger trick

[yoursghouly]

Source: Damn Nation Inc

[birds-nest-in-my-eye]

finger me (but it's math)

i have something light, fun, and useful today.

before i can go into it, i need to explain something about the way we notate things in math. in general, we look at math in alphabetical order. this is why we denote coordinates as (x, y). this is also why cosine is associated with x-values and sine is associated with y-values. you can think of coordinates on the unit circle as (cos, sin).

thanks for bearing with my nonsense. that will help with remembering the following trick, though.

with your right hand facing away from you, mentally assign each finger the following values:

pinky- 0

ring- 30/\pi/6

middle- 45/\pi/4

index- 60/\pi/3

thumb- 90/\pi/2

when you put each finger down, you are referencing that angle. as discussed above, math is done in alphabetical order. the fingers to the left of your dropped finger represent cosine and the fingers to the right represent sine. the following is an equation that shows the information you gain. let f(r) equal the number of fingers on the right and f(l) equal the number of fingers on the left. t is the reference angle.

cos(t) = \sqrt(f(l))/2

sin(t) = \sqrt(f(r))/2

so, let’s put down our middle fingers. we have 2 raised fingers on either side. since our middle finger represents 45/\pi/4, we can use cos(\pi/4) and sin(\pi/4) to check our answers. for cosine- \sqrt(2)/2 and for sine \sqrt(2)/2

turns out, that is exactly the value of cos(\45) and sin(45).

to explain in normal words: take the square root of the number of raised fingers and divide it by two to find the value of cosine or sine of the reference angle. the numbers on the left are cosine and the numbers on the right are sine.

i’m kind of a slut for finger tricks, so if you all have any i’d love to hear about them! (fun fact: the 9’s trick works because every number that is divisible by 9 can be broken up into digits which add up to a multiple of 9; the same is true for numbers divisible by 3)

take care.

[nartothelar]

card tricks! 🃏✨

[attyrocious]

emotional support killer

[gummi-ships]

Kingdom Hearts & Kingdom Hearts 2 Spooky Heartless

[viejospellejos]

¿¡Cómo!?

[aeymii]

Sometimes, you just gotta sit back and draw this a-hole✨

[turtleblogatlast]

“Haven’t You Noticed (I’m a Star)” from Steven Universe works so ridiculously well for Leo

[luyo-mi]

my pookies

[mogwaei]

.

[waspgrave]

My big theory on Taash isn’t spoilery but I think they’re gonna transition in some manner in the story. My proof? She’s giving me vibes + devs not seeming to agree on pronouns + Taash not being too involved in promotions might be to prevent even further right wing raging. I’ll eat my words if I’m wrong but I’ve been sitting on this for weeks

[bluishfrog]

They are keychains and obviously dnf immediately decided to tie their chain rings together

Based on trin's idea

[fexjam]

How do you do it.. how do you draw hands

I don't know. I don't know how to draw hands, I've never learned how to draw hands and I never think about it.

You THINK I know because one day I learned that using square shapes (and drawing nails!) makes people think you know what you're doing.

Anyway this is how I imagine hands work. (But it's better if you just use your own hand as a reference.)

[procrastiel]

All I’m saying is this:

Neil created s2 to set up everything that needs to happen in s3.

He literally orchestrated an event for us (much like the ball) to see in the next season. So yes, I do believe there are Clues hidden in s2.

[frosteaart]

more art for @fyeahghosttrick 's ghost swap

this time using the prompt 'ghost trick/danny phantom crossover' by @scarlette-foxx

[starlitcrows]

caught red-handed this hallow's eve