Contents > CFML Reference > ColdFusion Functions > Log10

Log10

Calculates the logarithm of number, to base 10.

Number; the logarithm of number, to base 10.

Mathematical functions

Log10(number)

Exp, Log

<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>

Contents > CFML Reference > ColdFusion Functions > Log10

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