Description

Calculates the logarithm of number, to base 10.

Returns

Number; the logarithm of number, to base 10.

Category

Mathematical functions

Function syntax

Log10(number)

See also

Exp, Log

Parameters

Example

<h3>Log10 Example</h3>
<cfif IsDefined("FORM.number")>
    <cfoutput>
        <p>Your number, #FORM.number#
        <br>#FORM.number# raised to the E power: #exp(FORM.number)#
        <cfif FORM.number LTE 0><br>You must enter a positive real number to 
    see the natural logarithm of that number
        <cfelse><br>The natural logarithm of #FORM.number#: #log(FORM.number)#
        </cfif>
        <cfif #FORM.number# LTE 0><br>You must enter a positive real number to 
    see the logarithm of that number to base 10
        <cfelse><br>The logarithm of #FORM.number# to base 10: #log10(FORM.number)#
        </cfif>
    </cfoutput>
</cfif>
<cfform action = "log10.cfm">
Enter a number to find its value raised to the E power, its natural 
    logarithm, and the logarithm of number to base 10.
<cfinput type = "Text" name = "number" message = "You must enter a number" 
    validate = "float" required = "No">
<input type = "Submit" name = "">
</cfform>