In mathematics and science, very large and very small numbers are often made simpler and multiplied to a power of ten to make them easier to understand. For example, it can be much easier to read 1.2 trillion as formula_1 than 1,200,000,000,000. This can also be used with negative powers of ten to make small numbers, meaning you can represent 0.000001 as formula_2. This process is called scientific notation.