求教---反三角函數 - 麻辣學園

Public Function ASin(x As Double) As Double '反三角函數(sin-1) ASin = Atn(x / ((1 - x ^ 2) ^ 0.5)) * 180# / 3.14159265358979 End Function Public Function ACos(x As Double) As Double '反三角函數(Cos-1) ACos = Atn(((1 - x ^ 2) ^ 0.5) / x) * 180# / 3 ...

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