[.NET] VB 2008 計算Exponential Function的程式寫法
我要寫一個可以計算exponential function的程式，
exponential公式是：e^x = 1 + x + x^2/2! + x^3/3! + x^4/4! + …
以下是我寫的程式，
我知道錯誤的地方應該蠻多的，
但是我不知道從何改起＠＠，
拜託各位大大幫幫忙！
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim x, number_of_terms, i, n As Integer
Dim result, factorial As Double
x = TextBox1.Text
number_of_terms = TextBox2.Text
n = number_of_terms
If RadioButton1.Checked Then
factorial = 1
For i = 1 To n
factorial = factorial * i
Next
result = x ^ (n - 1) / factorial
Label4.Text = result
End If
End Sub
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