Numbers and Scientific Notation

The Num object is used any time a number is created in an expression. The SciNum object is used to create scientific notation.

All numbers are created using single object (the Num object in the Math namespace). The actual number is attached as a value. The object that is used is named Num in the Math namespace.

There is also an object for scientific notation called SciNum which is also in the Math namespace. The ScuNum object has two parameters, the first is the mantisa, the second is the exponent.

To create a number in scientific notation, you can create a number, multiply it by 10, and raise the "10" term to a power. The expression will be automatically converted to scientific notation.

The Convert command can be used to convert numbers between ordinary notation and scientific notation.

In addition to creating a number by typing a numeric value into an empty box, the Num object can be created without any specific number attached to it. This is primarily useful in the pattern match process. If a Num object appears on the right-hand side of a pattern match, it will match any number.

To create a Num object without a value attached to it, just type "num" in an empty box and select the Num object in the Math namespace.