Log10

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>