Floating-Point Decimal Literals

Floating-point literals can exactly represent FLOAT, SMALLFLOAT, and DECIMAL(p) values, using a decimal point or exponential notation, or both. They can approximately represent real numbers in exponential notation. The next examples show floating point numbers:
-123.45E6       1.23456E2       123456.0E-3

The E in the previous examples is the symbol for exponential notation. The digit that follows E is the value of the exponent. For example, the number 3E5 (or 3E+5) means 3 multiplied by 10 to the fifth power, and the number 3E-5 means 3 multiplied by the reciprocal of 10 to the fifth power.