Listeners contacted us to correct the answer to a clue from last week's puzzle, giving NPR's Ayesha Rascoe and Weekend Edition puzzlemaster Will Shortz a lesson in trigonometry. OK, so hold on, Will.

It’s an eternal question for generations of math students: How am I going to use this in the real world? At Bates, Meredith Greer answers that question with an entire course, “Mathematics Across the ...

Struggling with a problem that seems to require trigonometry? This lesson shows how to solve it without using trigonometry, using two easy methods anyone can apply. With clear logic and step-by-step ...

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles. Trigonometry is found all throughout geometry, as every straight-sided shape may be broken ...

Knowledge Adventure seems to have a simple philosophy when it comes to their Excel@ series: more is better. Each $20 package contains multiple CDs that offer a mix of learning material. Most middle- ...

TRIGONOMETRY by Rob Kempson (Timeshare). At Factory Studio Theatre, 125 Bathurst. Runs to March 25. $15-$20. See listing. Rating: NNN Emerging playwright Rob Kempson‘s ambitious and impressively ...

OK, so hold on, Will. Before we totally wrap up this week's puzzle, we need to admit to a bit of a mistake that we made in one of our answers last week. I think you know what I'm talking about. WILL ...