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.
exp(number) → returns numeric
The result could very depending on if the server is running windows or linux. On a windows box the result will be round to 3.1
Expected Result: 3.099999999997