求excel中两个曲线交点曲线是由数据组成的,希望用函数或者VBA的方法求曲线的交点.（数据1中的数据多少不定）
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求excel中两个曲线交点曲线是由数据组成的,希望用函数或者VBA的方法求曲线的交点.（数据1中的数据多少不定）
求excel中两个曲线交点
曲线是由数据组成的,希望用函数或者VBA的方法求曲线的交点.（数据1中的数据多少不定）
求excel中两个曲线交点曲线是由数据组成的,希望用函数或者VBA的方法求曲线的交点.（数据1中的数据多少不定）
如图,CommandButton1的程序如下：
Private Sub CommandButton1_Click()
Dim i As Integer, j As Integer
[e1].Formula = "=MDETERM(F1:H3)"
[f7:g7].ClearContents
For j = 2 To Range("C65536").End(xlUp).Row - 1
For i = 2 To Range("A65536").End(xlUp).Row - 1
[f1] = Cells(j, "c")
[g1] = Cells(j, "d")
[h1] = 1
[f2] = Cells(j + 1, "c")
[g2] = Cells(j + 1, "d")
[h2] = 1
[f3] = Cells(i, "a")
[g3] = Cells(i, "b")
[h3] = 1
[i1] = [e1]
[f3] = Cells(i + 1, "a")
[g3] = Cells(i + 1, "b")
[h3] = 1
[i2] = [e1]
[f1] = Cells(i, "a")
[g1] = Cells(i, "b")
[h1] = 1
[f2] = Cells(i + 1, "a")
[g2] = Cells(i + 1, "b")
[h2] = 1
[f3] = Cells(j, "c")
[g3] = Cells(j, "d")
[h3] = 1
[j1] = [e1]
[f3] = Cells(j + 1, "c")
[g3] = Cells(j + 1, "d")
[h3] = 1
[j2] = [e1]
If [i1] * [i2] <= 0 And [j1] * [j2] <= 0 Then
[f7] = Cells(i, "a") - [i1] / ([i2] - [i1]) * (Cells(i + 1, "a") - Cells(i, "a"))
[g7] = Cells(i, "b") - [i1] / ([i2] - [i1]) * (Cells(i + 1, "b") - Cells(i, "b"))
Exit For
End If
Next i
If [f7] <> "" Or [g7] <> "" Then Exit For
Next j
End Sub
执行后,若有交点则显示在F7:G7