作者lydialee1212 (girl)
看板Visual_Basic
标题[VBA ] 关於VB2008的程式问题
时间Wed Oct 14 21:35:39 2009
关於vb2008的程式
sin(x)=x-x^3/3!+x^5/5!-x^7/7!+x^9/9!的运算
是新手 写了一部分 但不知道该如何接下去了
form1
sin(x)
x(label2)=textbox1
number of term(label3)=textbox2
result(label4)=label5
buttom
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
Dim a, b As Integer
a = TextBox1.Text
b = TextBox2.Text
Dim factorial As Integer = 1
Dim n As Integer
For I As Integer = 1 To n
factorial = 1
factorial = factorial * (2I - 1)
Next
Dim result As Double
result = a
result = result + (-1) ^ b * a ^ (2I - 1) / factorial
result = label5.Text
End Sub
可以帮我找出来该在哪里加东西吗?
谢谢
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