Math.E (VB.net)
<%@ page language="vb" runat="server" %> <script runat="server"> Sub Page_Load() pi.text = Math.PI exp.text = Math.E End Sub Sub Update(Sender As Object, E As EventArgs) Dim dblInput As Double = CDbl(input.text) sqrt_input.text = dblInput sqrt_result.text = Math.Sqrt(dblInput) abs_input.text = dblInput abs_result.text = Math.Abs(dblInput) log_input.text = dblInput log_result.text = Math.Log10(dblInput) End Sub </script> <html> <body> <hr /> Pi = <asp:label id="pi" runat="server" /><br /> Exponential Constant = <asp:label id="exp" runat="server" /> <hr /> <form runat="server"> Input = <asp:textbox id="input" runat="server" /> <asp:button text="Submit" runat="server" onclick="update" /> </form><hr /> Square root of <asp:label id="sqrt_input" runat="server"/> = <asp:label id="sqrt_result" runat="server" /><br /> Absolute Value of <asp:label id="abs_input" runat="server"/> = <asp:label id="abs_result" runat="server" /><br /> Logarithm of <asp:label id="log_input" runat="server"/> = <asp:label id="log_result" runat="server" /><br /> </body> </html>