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u/Wooden-Hornet2115

▲ 560 r/ExplainTheJoke

Short Key Defect

What is a short key defect? Like yeah the key os too short for the lock, but what's the pun?

From r/engineeringmemes

u/Wooden-Hornet2115 — 5 days ago
▲ 14 r/supermariosunshine

This stupid boo

So, I was going through Sirena Beach and accidentally got too close too the boo and took damage. When I tried to hop on, I couldn't. It did end up working for whatever reason, but it was very annoying. I only recorded the last three attempts of getting back on yoshi, but I had like 12 or so attempts total.

u/Wooden-Hornet2115 — 6 days ago
▲ 8 r/mapporncirclejerk

Amount of Americans That Can Correctly Point to Each Country on a Map

Posting this to avoid studying for my differential equations course.

I was going to add a tag but what on earth do any of these mean!? (I'm not good at jerking my circle, but wtf?)

u/Wooden-Hornet2115 — 8 days ago
▲ 42 r/supermariosunshine

The Ever Elusive Banana

I am in episode 4 trying to collect the blue coins from the butterfly, and I need the yoshi. I cannot find this banana and would require some assistance.

u/Wooden-Hornet2115 — 12 days ago
▲ 4 r/supermariosunshine

Help ):

So you know how there are two secret shines for each stage where you enter their respective secret stages and get red coins with fludd? From my knowledge, there is only one that is like this in Gelato Beach, yet there are definitely two secret stars there. What is the other star?

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u/Wooden-Hornet2115 — 13 days ago
▲ 16 r/mathematics

So I've heard people refer to University Calculus in therms of Calculus 1, 2, and 3. What is the difference between each of them and the topics they cover?

By the way, I am studying Calculus in Canada.

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u/Wooden-Hornet2115 — 16 days ago
▲ 137 r/mapporncirclejerk

I definitely **didn't** steal this from Toby on r/physicsmemes in any way whatsoever. It is so my original work, that no one will ever question that it is mine. It is the most original work of all time.

u/Wooden-Hornet2115 — 19 days ago
▲ 1 r/askmath

I want to specify I'm not asking what cosh(x) is equal to. I know that cosh(x) = (e^(x) + e^(-x))/2 , **I want to know why it is that way.**

Everything that I see just gives properties of it. Like I'll hear "The hyperbola is parameterised with cosh and sinh, like how the circle is parameterised with cos and sin", "Oh it's because it is cosh(x) = cos(ix)", "Oh it's because it is cosh^(2)(x) - sinh^(2)(x) = 1", and I understand those concepts, but it doesn't answer why cosh(x) = (e^(x) + e^(-x))/2 specifically, and it feels very dismissive. Like how did we ever figure it out in the first place?

I've heard some people say I just need to know how to differentiate it, use it in u-substitutions, and use identities to manipulate it, and I'll be fine; but I really want to have a good understanding of it.

Edit: I think I have a good idea about the hyperbolic trig questions. Thank you to everyone that helped.

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u/Wooden-Hornet2115 — 25 days ago