inakimamainmodule.bas

用vb写的有关科学计算方面的

Attribute VB_Name = "MainModule"
Sub Main()
    Dim k As Integer, n As Integer
    Dim t As Double, x(11) As Double, y(11) As Double, s(5) As Double
    Dim str As String
        
    ' 给定结点
    x(1) = -1#
    x(2) = -0.95
    x(3) = -0.75
    x(4) = -0.55
    x(5) = -0.3
    x(6) = 0#
    x(7) = 0.2
    x(8) = 0.45
    x(9) = 0.6
    x(10) = 0.8
    x(11) = 1#
    
    y(1) = 0.0384615
    y(2) = 0.0424403
    y(3) = 0.06639
    y(4) = 0.116788
    y(5) = 0.307692
    y(6) = 1#
    y(7) = 0.5
    y(8) = 0.164948
    y(9) = 0.1
    y(10) = 0.0588236
    y(11) = 0.0384615
    
    ' 计算插值的控制参数
    k = -1
    
    ' 结点数
    n = 11
    
    ' 插值位置
    t = -0.85
    ' 插值
    Call INAkima(10, x, y, k, t, s)
    str = str & "f(" & t & ") = " & s(5) & Chr(13)
    For i = 1 To 4
        str = str & "s" & (i - 1) & " = " & s(i) & "    "
    Next i
    
    str = str & Chr(13) & Chr(13)
    
    ' 插值位置
    t = 0.15
    ' 插值
    Call INAkima(10, x, y, k, t, s)
    str = str & "f(" & t & ") = " & s(5) & Chr(13)
    For i = 1 To 4
        str = str & "s" & (i - 1) & " = " & s(i) & "    "
    Next i
    
    MsgBox str
    
End Sub