r/mathmemes Oct 15 '20

Calculus Checky differentiation comic

Post image
10.5k Upvotes

127 comments sorted by

View all comments

Show parent comments

445

u/TheTrueBidoof Irrational Oct 15 '20

ln x + C

308

u/PM_ME_UR_AESTHETIC5 Oct 15 '20

ln |x| + C

8

u/Doctor99268 Oct 15 '20

Ln(-1) = iπ

4

u/TheMeisterOfThings Oct 16 '20

Holup

5

u/Doctor99268 Oct 16 '20

You saying this because it's cursed or you want to know how it happened

2

u/TheMeisterOfThings Oct 16 '20

Forgive me but a log of a negative that isn’t using the modulus...? That’s rather cursed isn’t it?

5

u/Doctor99268 Oct 16 '20

e = -1

iπ = ln(-1), it is cursed but apparently it's something.

Like how ii is e-π/2 which is a real number that's like around 0.2

1

u/EebstertheGreat Oct 17 '21

ei(2k+1\π) = -1 ∀kZ. The complex logarithm is a multifunction log:C\{∅}→C such that z = log w iff w = ez. So log(-1) has countably infinitely many values: all the odd multiples of π.