The Real Number System and Irrationality | CodeSignal Learn

General Skills

The Real Number System and Irrationality

You will meet the numbers that refuse to be written as fractions. You will learn why their decimal expansions never terminate or repeat, recognize famous examples like π and e, and identify irrationals generated by square roots. Finally, you will learn to bound these numbers between integers to understand their place on the number line.

5 lessons

16 practices

Less than 2 hours

Computing with Numbers

Course details

Introducing Irrational Numbers

Identifying Irrational Numbers

Decimal Behavior Practice

Explain Number Line Gaps

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