Big sales on Udemy!

Udemy just started a ten-day sale. To get the best prices, now is the time! To make us extra happy, please use one of our referral links. Either the current monthly code TPOT_MAY25 or click a link from our “Coupons” page.

Calculus 2, part 2 is out!

After a (relatively) long wait, the last part of the “Calculus” series is out, so now we have Calculus 1, 2, and 3, each in two parts, on Udemy. Here’s the link to get Calculus 2 part 2 with our discount code attached. If you come to this page later,...

New code, very low price

Right now at the start of the new year, you can get our courses for the lowest price possible, $9.99 (except for one course that is $10.99 for some reason). Use the code HAPPY2025 at checkout. But hurry, it’s just for a couple of...

Practical information about our courses on Udemy

Because we get a lot of questions from our students (and from those who are thinking about becoming our students), we have prepared several documents answering the most common questions. The files with our answers will be updated each time we release a new course and...

Calculus 2, part 1 of 2, is released

Finally, we have released the first part of Calculus 2. You can find it on Udemy (our referral code is included in the link). If that price seems high, try using our coupon code at checkout: TPOT_JUL25. This code changes in a very predictable manner every month....