Arctan Addition Formulas are really Sin/Cos angle addition Formulas in Disguise Oct 26 less than 1 minute read An observation from this weekend Share on Bluesky Mastodon Previous Next Leave a comment
Looking at a parabola and going off on 4 tangents May 13, 2026 2 minute read As the curriculum sequence is normally presented, we don’t usually consider tangent lines to curves until Calculus. As a result, taking a derivative might se...
Two Boxes in a Circle April 30, 2026 4 minute read The March MathsJam had an interesting geometry puzzle.
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