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A comment on A visual proof that a^2 – b^2 = (a + b)(a – b). Parent comment

Re:A visual proof that a^2 – b^2 = (a + b)(a – b) by chisquared on Sunday December 15, 2024 @03:19PM (#42425685)
There’s no need for this extension: https://news.ycombinator.com/item?id=42425681
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Re:A visual proof that a^2 – b^2 = (a + b)(a – b) by jacobolus on Monday December 16, 2024 @08:44AM (#42430869)
Well the whole point here is that we're doing geometry. If you just want to do symbol twiddling you don't need the picture at all.
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