Rachel Repstad

Passionate about teaching mathematics. Super queer. Tweets are my own. She/her.

[Rhiannon @AywaRhiannon]

@fivefourpod FAKE ASS CASE FAKE ASS ARTIST DOESNT EVEN DO WEDDING WEBSITES FAKE ASS LEGAL CLAIM FAKE LOSER SHIT FOR BRAINS

[Jon Wu @jonwu_]

In 2017, I interviewed with Elizabeth Holmes to be Head of Finance at Theranos.

I'm convinced I learned more in those 45 minutes than I did in 10 years of school and work.

Today, she reports to federal prison to serve out an 11 year sentence for fraud.

Time for a story 🧵:

[Algebra Etc. @AlgebraFact]

211184 = 2^13 * 3^3, so I’m guessing that’s 13 binary options and 3 trinary options.

Pickles: yes or no.
Lettuce: yes or no
…

[Rachel Repstad @rrepstad]

@LongFormMath What’s purple and commutes?

An abelian grape.

[Rachel Repstad @rrepstad]

@seleneonline A car driving the wrong way down a one-way street has a driver who is not paying attention. So like, you don’t want to miss those guys.

[capitolhunters @capitolhunters]

Someone has to say it: Elon Musk has lied for 27 years about his credentials. He does not have a BS in Physics, or any technical field. Did not get into a PhD program. Dropped out in 1995 & was illegal. Later, investors quietly arranged a diploma - but not in science. 🧵1/

[Rachel Repstad @rrepstad]

@RottenInDenmark As a local, I had a bad feeling about the article as soon as I saw the writer describe Burlington as “bike friendly” (it’s not). The rest went downhill from there.

[Rachel Repstad @rrepstad]

@troublesometots @VTAutists @GovPhilScott It’s too bad that Vermont never ousts an incumbent governor. I don’t think an incumbent gov has lost a re-election bid for as long as I have been alive. When was the last time, I wonder?

[Howie Hua @howie_hua]

An escape room but it's just a room with a group of people arguing about a PEMDAS problem

[Rachel Repstad @rrepstad]

@scrappydebbie @LongFormMath Or maybe “find a set of five numbers that satisfy the following conditions:”

[Rachel Repstad @rrepstad]

@nathanwpyle -monger

[Rachel Repstad @rrepstad]

@mathladyhazel I would so hang this in my wall if we could fix one thing:

[Rachel Repstad @rrepstad]

Just sitting around waiting for the next episode of @MaintenancePod to drop.

[Rachel Repstad @rrepstad]

@syzygay1 @StephDoesMath It is largely accepted that sqrt(a)*sqrt(b)=sqrt(a*b) only holds when a and b are both positive, so I don’t see the problem with defining i in this way.

[Rachel Repstad @rrepstad]

@syzygay1 @StephDoesMath If the definition is i^2=-1, then i is not a well-defined constant, right? There would be no difference between i and -i. I have no problem with i =sqrt(-1), the principal root is i, and the other root is -i.

[Ben Wexler @mrbenwexler]

Oh my goodness watch this

[Rachel Repstad @rrepstad]

@adamfelber

[Rachel Repstad @rrepstad]

@ProfKinyon I think the difference between f and g is only important if you are discussing surjectivity. One can argue that g is surjective, but f is not.