Calculates the exponent whose base is e that represents number. The constant e equals 2.71828182845904, the base of the natural logarithm. This function is the inverse of Log, the natural logarithm of number.
The constant e, raised to the power of number.
Exp(number
)
Parameter |
Description |
---|---|
number |
Exponent to apply to the base e |
To calculate powers of other bases, use the exponentiation operator (^).
<h3>Exp Example</h3> <cfif IsDefined("FORM.Submit")> <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 its natural logarithm <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 its logarithm to base 10 <cfelse><br> The logarithm of #FORM.number# to base 10: #log10(FORM.number)# </cfif> </cfoutput> </cfif> <cfform action = "exp.cfm"> Enter a number to see 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 = "Submit"> </cfform>