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13 years ago

你的算式有點錯(錯在一個減號,用這個吧)
1.2+(sqrt(1-(sqrt(x^2+y^2))^2) + 1 – x^2-y^2) * (sin (10000 * (x*3+y/5+7) )+1/4) from -1.6 to 1.6

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