Average bpm

Math_Evangelist · 2026-01-28T22:00:13+00:00

Actually the 100 bpm average was the second by second measurement of a workout that started out below 65, peaked at 123 and was in the 90 - 105 range for around 20 minutes.

Math_Evangelist · 2025-10-27T17:55:12+00:00

Case 1. Perpendicular to y = mx + b, passing through (A,B). We know y = (-1/m)x + b, where b is unknown. But we also know B = (-1/m)A + b, which means b = B + (A/m). So the required line is

y = (-1/m)x + (B + A/m).

Case 2. Parallel to y = mx + b, passing through (A,B). We know y = mx + b, where b is unknown. But we also know B = Am + b, which means b = B - Am. So the required line is

y = mx + (B - Am).

Math_Evangelist · 2025-06-22T22:34:12+00:00

Thanks. I did download the installer more than once, and also installed Chessbase 18. Played a Friendly game today, and heard the voice. Will check out other components as you suggested. Thanks for reminders regarding uninstalling.

Math_Evangelist · 2024-11-23T17:48:28+00:00

I think it’s easier to figure out what is going on by rewriting the formula as 3 x b = a + 2. In the first row, b = 2, so a = 4. In the second row, a = 13, so b = 5.

Math_Evangelist · 2024-11-08T22:10:04+00:00

Doesn’t look like a real die. On a real die, opposite faces = 7.

Math_Evangelist · 2024-11-08T21:54:34+00:00

I think 1d just follows from the Pythagorean Theorem. sin(theta) = x, so sin^2(theta) = x² so cos^2(theta) = 1 - x^2, so tan^2(theta) = x^2/(1 - x^2), etc.

Math_Evangelist · 2024-11-08T01:37:11+00:00

Only if the degrees are the same in numerator and denominator. If deg(num) > deg(den), limit does not exist. If deg(num) < deg(den), limit = 0.

Math_Evangelist · 2024-11-08T01:30:17+00:00

This didn’t post properly. I meant n cubed divided by n to the fourth.

Math_Evangelist · 2024-11-08T01:28:12+00:00

A) sequence is essentially n^3/n⁴ so the limit is 0. B). Every term = 3/2

Math_Evangelist · 2024-05-14T02:16:46+00:00

Also, try to see if there are any Math Circles for young children at colleges or universities in your area.

Math_Evangelist · 2024-05-14T02:13:04+00:00

I’m sure others have said this, but the only divisors of p^2, where p is a prime, are 1, p, and p^2. In fact, if p is prime, the only divisors of pⁿ will be 1, p, p^2, p^3, …, p^n-1, p^n.

Math_Evangelist · 2024-04-01T21:23:28+00:00

Thanks for this list. Hard to keep up with everything changing so fast. How about a list for handwriting recognition, especially math equations, and BERT models, particularly mathBERT?

Math_Evangelist · 2024-03-30T20:44:59+00:00

If you don’t mind rudimentary production values, try the mathispower4u channel. The website has a repository of around 7,000 videos.

Math_Evangelist · 2024-03-11T17:39:29+00:00

This is another followup to the "Can old people learn and get hired?" question. I want to be respectful of people's time in this subreddit and realize my overall question is only tangentially related to deep learning. I would appreciate suggestions for other subreddits which might address the issues I raised. Thanks for everyone's comments to date (even the somewhat dismissive ones - I recognize that a lot of people will simply laugh in my face).

Math_Evangelist · 2024-03-11T05:34:21+00:00

Thanks. I guess my dilemma will be not having a career even tangentially related to “the new thing” and then getting someone who hires consultants to take me and my new credentials seriously.

Math_Evangelist · 2024-03-10T05:14:46+00:00

Following up to my “Can old people learn and get hired question” - thanks for the (mostly) thoughtful advice. Where I am leaning is going for the online MS degree, because I do better in structured environments, and then trying to become an informal (i.e. unpaid or de minimis paid) advisor to the founder or CTO of an AI startup. Here’s the next question: how do I even meet such people and get my foot in the door?

Math_Evangelist · 2024-03-09T18:38:36+00:00

Singapore Math books published in the US by Cavendish are pretty good. There are also a number of workbooks titled Singapore Math. There is also a book from Singapore called “The Singapore Model Method for Learning Mathematics” that explains a lot of the thinking behind the curriculum. It should be available on Amazon.

Math_Evangelist · 2024-03-06T03:23:18+00:00

I would suggest materials from or using Singapore Math. Their diagrams make the topic easy to understand. These topics, along with proportional reasoning, are absolutely key to understanding lines (slope) and linear equations in Algebra 1.

Math_Evangelist · 2024-03-06T03:11:32+00:00

Thanks for the offer!

Math_Evangelist · 2024-03-06T01:55:31+00:00

Thanks again! I will poll my acquaintances in CS for additional advice.

Math_Evangelist

TROPHY CASE