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.

Consider this

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 ...

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