Section 2.0. Introduction
Section 2.1. Converting Between Numbers and Strings
Section 2.2. Testing a Number's Validity
Section 2.3. Testing Numeric Equality
Section 2.4. Rounding Floating-Point Numbers
Section 2.5. Formatting Numbers for Text Display
Section 2.6. Converting Between Decimal and Hexadecimal Numbers
Section 2.7. Generating Pseudorandom Numbers
Section 2.8. Calculating Trigonometric Functions
Section 2.9. Creating a Date Object
Section 2.10. Calculating a Previous or Future Date
Section 2.11. Calculating the Number of Days Between Two Dates
Section 2.12. Validating a Date
