Lesson 2. A glorified calculator
After reading lesson 2, you’ll be able to
- Teach a computer to do your math
- Declare variables and constants
- See how declaration and assignment differ
- Use the standard library to generate pseudorandom numbers
Computer programs are capable of a great many things. In this lesson you’ll write programs to solve mathematical problems.
Why write a program when you could just use a calculator?
Well, have you memorized the speed of light or how long it takes Mars to orbit the sun? Code can be saved and read later, serving as both a calculator and a reference. A program is an executable document that can be shared and modified.
2.1. Performing calculations
There are days when we ...