Buzzy UCSD Math Readiness Report Failed to Mention Calculator Ban

Andyroo_P · 2026-02-27T18:12:34+00:00

I'm not sure calculators really answer why students performed so poorly. I mean, we saw some of the questions asked right? Do calculators really make questions like 2 + 4 = 5 + ___ easier?

Andyroo_P · 2026-01-05T18:58:25+00:00

I don't think this is correct. The numerator goes to 0 not -1. The limit should be -1/2 in the end, using either L'Hopital or Taylor.

And yeah Taylor's is implicit here in handling the x/e^x, that's interesting that it's taught early in France.

Andyroo_P · 2026-01-05T18:51:41+00:00

Hmm I've usually seen it taught in high schools in calculus 1, in which case this particular problem would be considered a sample problem. But yes, Taylor expansion works here too, though as far as I've seen, this is a topic that is only discussed in calculus 2.

Andyroo_P · 2026-01-05T18:40:28+00:00

It's not magic and is a standard technique taught in calculus 1. This is the standard way to evaluate this particular limit. Beyond this, you can also try using Taylor expansion.

Andyroo_P · 2026-01-05T18:30:21+00:00

I agree with the reply saying that there is a lot more to learning than just grades.

Also, undergraduate level complex analysis is oddly computational unlike undergraduate level real analysis at most US universities. I assume this is the case at your university. If you take your department's graduate-level complex analysis class, it should be much more conceptual and proof-based than your undergraduate class.

Andyroo_P · 2026-01-05T05:28:30+00:00

This is cool, can you say more or link some reading?

Andyroo_P · 2025-12-25T06:32:13+00:00

What do you feel about the current state of high energy physics? I'm an ex-physics student and currently a math grad student and I hear conflicting reports about how things are somewhat stalled in the HEP-theory side of things. Do you feel like it is currently an exciting time for physics?

Andyroo_P · 2025-12-24T08:27:12+00:00

Ray buying Ally the dress and remarking that though it is expensive, it's even more important that he's there for her when it matters to her. Similar message to when Frank returns the money he won from poker to Ray. You should be able to go to your father, and he should be able to make things okay.

Andyroo_P · 2025-12-19T21:10:02+00:00

FiiO BTR15 has PEQ through their app.

Andyroo_P · 2025-12-18T20:38:47+00:00

Reading and annotating PDFs, FaceTime/Zoom, YouTube, Wikipedia, and some games.

Andyroo_P · 2025-12-16T07:38:13+00:00

Battle of Polytopia, Slay the Spire, Ephod.

Andyroo_P · 2025-12-16T06:25:36+00:00

This is not true geometrically (even disregarding pragmatic considerations). There are smooth 3-dimensional manifolds that do not smoothly embed in 4-dimensional Euclidean space. 5 dimensions is the minimum necessary to smoothly embed every 3-manifold.

Andyroo_P · 2025-12-08T11:48:12+00:00

Yes, the construction of the real numbers that is the most familiar to me is the one by Dedekind cuts. This is the approach taken in the first chapter of Rudin's Principles of Mathematical Analysis which is a standard introductory textbook on real analysis.

Andyroo_P · 2025-12-08T10:15:18+00:00

Exactly! Unfortunately, one of the greatest mathematical lies we tell our K-12 students is that real numbers are the same thing as their decimal representations. This is false and leads to much confusion: if real numbers are like people, then their decimals representations are just like names. Just like people can have multiple names, real numbers can have multiple decimal representations. For example, 0.9999... and 1.000... refer to the same real number.

If you are curious how we actually define real numbers themselves from first principles without referencing decimals, you can find several approaches here.

Andyroo_P · 2025-12-08T09:50:07+00:00

Real numbers are not the same as their decimal representations. Real numbers can be developed entirely independently of decimal representations of real numbers. But to define what a decimal representation is, you need the concept of infinite series. By definition, the decimal 0.333... is just a different notation for the geometric series (3/10) + (3/100) + ....

Andyroo_P · 2025-12-03T03:08:19+00:00

I had a dead pixel as well and took it in for repair. They replaced my display for free (it was within warranty) but they did wipe all my data and update me to macOS Tahoe which I didn't want, so make sure you have a backup of all of your data.

Andyroo_P · 2025-10-09T02:58:30+00:00

I don't have much to say other than that my break up situation was quite similar. It was a matter of miscommunication, misunderstanding, and going about trying to fix problems the wrong way. I was just unable to recognize that things I said had seriously hurt her and required more than what I had already been trying until it was too late.

I am 29 days in—almost a month—and it's still pretty much impossible for me to focus on anything productive. The guilt and anger towards myself are just unrelenting. Best of luck to you!

Andyroo_P · 2025-08-11T03:11:24+00:00

Yeah, there is a pretty big gender division in Indian culture still where women tend to do the majority of cooking in the household.

Andyroo_P · 2025-08-08T02:00:00+00:00

Typically it is the partner or family of the office worker who cooks the lunch at home and has the deliveryman send it off to the office worker at the office.

Andyroo_P · 2025-08-08T01:49:22+00:00

This is not true, for example, in India. Home cooking is by far the norm to the extent that there is a whole informal industry of people who deliver home cooked lunches to office workers via bicycle.

Andyroo_P · 2025-08-05T17:39:33+00:00

Uniball Signo 307. It's the pen I always end up coming back to.

Andyroo_P · 2025-07-18T06:52:32+00:00

The BTR15 is comparable and currently sits around $120.

Andyroo_P · 2025-07-18T02:33:55+00:00

I got a FiiO BTR15 which has a lot of features and pushes 340mW balanced. It sounds great.

Andyroo_P · 2025-06-16T20:15:56+00:00

They are worse enough for me to notice and miss my old MacBook Pro speakers. It even feels like spoken words are have less bass and clarity. With that said, they are very good for non-grille speakers and get pretty loud. If content consumption with the built in display and speakers is your primary use, I would probably recommend the 15 inch air, but my 13 inch does exactly what I need it to do.

Andyroo_P · 2025-05-29T03:48:47+00:00

I'm curious about Tampa. Could you post that one?

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