vb求cos(x)的近似值,cos(x)=1-x^2/2!+x^4/4!-.+(-1)^(n=1)*x(2*n-2)/(2*n-2)!精确到10^-6Private Sub Command1_Click()Dim i As Integer,b As Integer,c As Integerx = Text1.Textb = 0For i = 1 To nb = b + a(i)c = Abs(b \ 1 - b)If c < 10 ^ (-6) ThenText2
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