/sci/ - Science & Math

"Attempt to use Wolfram Alpha before posting" edition
Previously >>11414845

>what is /sqt/ for
Questions relating to math and science, plus appropriate advice requests.
>where do I go for other SFW questions and requests?
>>>/wsr/ , >>>/g/sqt , >>>/diy/sqt , >>>/adv/ , etc.
>pdfs?
libgen.is (Warn me if the link breaks.)
>book recs?
https://sites.google.com/site/scienceandmathguide/
https://4chan-science.fandom.com/wiki//sci/_Wiki
>how do I post math symbols?
https://i.imgur.com/vPAp2YD.png
>a google search didn't return anything, is there anything else I should try before asking the question here?
https://scholar.google.com/
>where do I look up if the question has already been asked here?
>>/sci/
https://boards.fireden.net/sci/
>how do I optimize an image losslessly?
https://trimage.org/
https://pnggauntlet.com/

Question asking tips and tricks:
>attach an image
>look up the Tex guide beforehand
>if you've made a mistake that doesn't actually affect the question, don't reply to yourself correcting it. Anons looking for people to help usually assume that questions with replies have already been answered, more so if it has two or three replies
>ask anonymously
>check the Latex with the Tex button on the posting box
>if someone replies to your question with a shitpost, ignore it

Resources:
Good charts: https://mega.nz/#F!40U0zAja!cmRxsIoiLFZ_Mvu2QCWaZg
Shitty charts: https://mega.nz/#F!NoEHnIyT!rE8nWyhqGGO7cSOdad6fRQ (Post any that I've missed.)
Verbitsky: https://mega.nz/#F!80cWBKxC!ml8ll_vD2Gbw4I1hSLylCw
Graphing: https://www.desmos.com/
Calc problems: https://www.wolframalpha.com/

>>11394426
We've already had this thread. The answers from the top of my head.
>1.
A circle.
>2.
You get a rectangular shape with rounded corners and a rectangular section hollowed out in the middle, almost like a hollowed out stadium (but not a stadium) with an area of 28+pi square meters.
>3.
Put two stakes in the field a distance 2L apart. Now tether the goat to each length of rope R>L.
>4.
A stadium.
>5, semicircle.
Set up two stakes far away and far apart from each other and connect them with a straight line of rope. Along the perpendicular bisector of this line, place another stake at a distance L. Tether the goat with two ropes, one with length R<L connected to the bisector stake and the other being a rope with length L that can slide along the far rope. The goat is now constrained to a semicircle.

I'm too lazy to work out the rest.

>>11212335
>I'm thinking about dropping everything in life but the study of actual nonsense
you are free to waste your life

>another incel thread

posting in a CUM thread