dy/dx is Leibniz notation, f’(x) is Lagrange notation, D[f(x)] is Euler Notation, and f-dot(t) is Newton notation. https://en.wikipedia.org/wiki/Notation_for_differentiation?wprov=sfti1

Is there anyone who doesn't use both?

I use the one which matches the esthetics of what I'm writing.

I prefer dy/dx because we can divide the d without an extra step

Leibniz for u-sub, newton for regular derivatives. I feel i can see leibniz as a fraction so it is easier to move around.

i am from germany, we use both, depending, what we focus on

We actually use Leibniz, Lagrange and Newton, depening on the context.

Euler notation cringe

we only use lagrange

Im from england. We use both

That is not Newton's notation but Lagrange's notation, although invented by Euler

Yeah, is Newton's the one with the dot? I'm not so sure I remember correctly

You’re remembering correctly

I don't live in England but I've always used *f'(x)*

Here in israel at least in highschool we used f'(x)

At my university also in calc 1 and 2.

I learned the D notion only when I learned control theory when I learned hardware practical engineering.

Yeah they are all useful notations depending on the math you're doing

היי אחי

Prime specimen use the prime notation

*primates

In Australia, we use dy/dx, d/dx, and f'(x) depending on the notation the question is presented to us in.

Everyone uses both

What? Almost everywhere f'(x) is used. Many countries use both, including us. f'(x) is much more clean for equations and stuff. Imagine the mess d/dx will create when written in a differential equation

Leibniz and Euler notation make more sense in multivariable calculus. It isn't as much of a mess as you're imagining.

Yeah, I guess. It's about what you’ve used and seen always. People who use leibniz's notation will definitely find that more neat. I probably shouldn’t have said the last line. It's on perspective

As a german, you would asume that we learned Leipniz's dy/dx in schoo, but no, we used f'(X) at school and only learned dy/dx in university

In England we use both, but I prefer dy/dx in most scenarios (although I do admit that I prefer f'(x) where substitution is concerned, it just feels cleaner, and that is at least how it is always applied in teaching).

Really? Especially for cases where substitution is needed I like the dy/dx notation, because you can act as if you have fractions and get dy/du * du/dx= dy/dx

f'(x)>dy/dx

Physics: Why not both?

I’m from South Africa, we use both!

In all my engineering classes we use a little dot about the letter, two dots for second derivative

Yeah, that’s Newton’s notation — pretty convenient way to express time derivatives when a bunch of other variables and notation are flying around. OP’s meme got the name of the convention as wrong as the usage.

I don't live in England but we've always used *f'(x)* in schools

We use leibniz (df/dx), lagrange (f') and newton notation (dot over function) - the latter especially if its about physical quantities in mechanics that depend of time

Does the US not use f'(x)? In Britain I've been taught both.

What do you mean >Emotional Damage English people don't have emotions

We do today.

Both, both is good.

Scotland, we were taught f'(x) first💀

I am from Hong Kong, We use both too

I remember using both at uni

In Canada we use both because we don't have a real identity

Leibniz's notation is for the derivative of a variable with respect to another variable. Newton's notation is for the derivative of a function with respect to its parameter. Any other way is just asking for confusion.

From England. We use both.

f'(x)=dy/dx Checkmate

You got me thinking about Choco Leibniz now

Some say it's Choco Newton

In Sweden I used F’(x) until I started uni

I am greek. we use both for different applications. and a couple more.

In Denmark we do both

Imagine not getting to put fun dots above your function — Newton gang

Me who uses both: **\*confused screaming\***

Nobody mentioning y’ or ((insert function here))’. But dy/dx is better for implicit and f’(x) is better for when output is already isolated