this post was submitted on 02 Oct 2023
138 points (94.8% liked)

Science Memes

11441 readers
155 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.

Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
[email protected]
[email protected]
[email protected]
138
Are you interested? (i.imgur.com)
submitted 1 year ago by [email protected] to c/[email protected]
14 comments fedilink hide all child comments
 
all 15 comments
sorted by: hot top controversial new old
[–] [email protected] 26 points 1 year ago

Nice.

[–] [email protected] 13 points 1 year ago (4 children)

Can someone explain this? Integral from 10 to 13 of 2x? It's been a long time since calculus for me, but isn't that like 2x² + c or something like that?

[–] [email protected] 37 points 1 year ago (1 children)

[–] [email protected] 4 points 1 year ago (2 children)

Is this Wolfram Alpha?

[–] [email protected] 11 points 1 year ago (1 children)

It is Photomath

[–] [email protected] 4 points 1 year ago

Never heard of this before, looks cool. Wish I had that when I was taking calculus lol

[–] [email protected] 2 points 1 year ago

Looks like

[–] [email protected] 16 points 1 year ago (1 children)

Just x²+c, but when you're integrating between limits the +c doesn't matter - so you're just left with the difference between 13² and 10²...

[–] [email protected] 4 points 1 year ago* (last edited 1 year ago) (1 children)

It isn't that it doesn't matter, constant of integration is only used for indefinite integrals.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

I think it's "indefinite" not "undefined" (at least in English).

The reason it doesn't matter/is only used for indefinite integrals is just that it gets subtracted out when you evaluate at the limits of integration, so it always goes away (but it's still there in the antiderivative).

(x1+c)-(x0+c) = x1-x0

[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

I think it's "indefinite" not "undefined" (at least in English).

You are correct, it has been at least ten years since my calculus classes which I took in a language that isn't English.

[–] [email protected] 11 points 1 year ago (1 children)

The integral of 2xdx is x^2 + c, and it’s evaluated from 10 to 13. So you’d have the following:

(13^2 + c) - (10^2 + c).

The c’s cancel. I’ll leave you to do the rest…

[–] [email protected] 2 points 1 year ago

le epic 69