[RESOLVED] Ln function in vbnet.. very urgent!!!

[noam309]

Hi evryone,

I have Ln in my function that I write in excel but in vb it doesn't work

0.215*Ln(4.32/0.3)

it should return the value = 0.573

how can I write this function without using log function (I don't know logs functions)

I didn't understand any explanation in the net , Please I'm stuck with my project!!!

[Zeljko]

Private Sub btnLogarithmCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogarithmCalculate.Click
        '0.215*Ln(4.32/0.3)
        Dim a As Double = 0.215 * Math.Log(4.32 / 0.3)
        MsgBox(a.ToString)  'it returns 0.57345406441512
End Sub

[Zeljko]

Why do you don't wanna use Log when you use Ln in excel.
You dont need to know how Log is calculated. math class does that for you...
Log in vb = Ln in excel = It is the same thing.

[noam309]

Thank you very much , I'll check it out!

[Zeljko]

please, mark the thread resolved...

[noam309]

thank you