If you are a regular user of the Calc Nexus and have a 12-key keypad, you can try entering "telenumeric" numbers to speed up the process of entering values with decimal points. For example, if you are using the mileage calculator, and want to enter 10.456 gallons, you can enter "!0.gjm". Here are the rules:
For those wondering, "E" or "e" is used in "E-notation" for very large or very small numbers. For example 3E8 is 300,000,000 or approximately the speed of light.