📗 幾何心路 | lochiwei | Observable

lochiwei

@lochiwei

One advantage of talking to yourself is that you know at least somebody’s listening.

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New!A new Observable! Read the announcement →

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📗 幾何心路 | lochiwei | Observable📗 幾何心路 | lochiwei | Observable

📗 幾何心路

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「平面外積」與「有向面積」

Jan 19, 2021

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三角形的「有向面積」

May 9, 2021

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兩向量的「向量比」

Jan 20, 2021

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「向量比」的運算性質

Jan 21, 2021