寫出橢圓公式
覺得上道題太容易的同學
窮則思變 (2018-02-26 19:42:17) 評論 (1)寫出橢圓公式
海外博客
覺得上道題太容易的同學
acac 發表評論於
y=2*sqrt(1-x^2/9) ? It is indeed quite easy.
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