|Navigation: Language Reference > 13 - Built-in Functions >====== LOGE (return natural logarithm) ======|
|LOGE||Returns the natural logarithm.|
|expression||A numeric constant, variable, or expression. If the value of the expression is less than zero, the return value is zero. The natural logarithm is undefined for values less than zero.|
The LOGE (pronounced “log-e”) procedure returns the natural logarithm of a numeric expression. The natural logarithm of a value is the power to which e must be raised to equal that value. The value of e used internally by the Clarion library for these calculations is 2.71828182846.
|Return Data Type:||REAL|
!LOGE(2.71828182846) returns 1
!LOGE(1) returns 0
LogVal = LOGE(Val) !Get the natural log of Val