110
270! degrees (lemmy.nz)

Which is roughly 6.7*10^540.

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[-] AnnaFrankfurter@lemmy.ml 17 points 9 months ago

Better yet we make the circle 2π and then divide it such that no one knows what it means

[-] 18107@aussie.zone 7 points 9 months ago

2π (radians) is mathematically useful because one angle unit at a distance of 1 has a length of 1. It's not intended for navigation.

[-] AnnaFrankfurter@lemmy.ml 3 points 9 months ago

Or we can switch to polor coordinates and then use this for navigation

[-] HeyThisIsntTheYMCA@lemmy.world 7 points 9 months ago

How are there 2 πs in a circle when you only get to eat 1 π?

[-] AnnaFrankfurter@lemmy.ml 3 points 9 months ago

The Big π is lying to you you can eat 2π

[-] HeyThisIsntTheYMCA@lemmy.world 3 points 9 months ago

but aren't those 2π technically 4π? i'm so confused

this post was submitted on 07 Dec 2025
110 points (93.0% liked)

Unexpected Factorial

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25 users here now

When you use an exclamation mark with a number, you’re actually implying it’s not a normal number any more. It’s a factorial!

Ok, so how does this work?

5!=1×2×3×4×5=120

6!=720

These numbers get really large. For example:

15!≈1.3×10^12

So, next time you see a headline with 2000! in it, you’ll know what to expect.

There are also double factorials (n!!) and iterated factorials (n!)!, and they aren’t the same thing. Just add more exclamation marks and you get multifactorial. Check wikipedia to see how spicy it gets.

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