腦殘隨筆
Showing posts with label
數學推導
.
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Showing posts with label
數學推導
.
Show all posts
Saturday, August 11, 2018
外積的由來
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Saturday, July 28, 2018
海龍的誕生
海龍的誕生~
今有一三角形邊長分別為a,b,c,
吾人令c邊上的高為h
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