In the early 1970s mathematician Donald Knuth spent a sabbatical with his wife in Norway. The time was meant to be spent relaxing. Yet one night he woke up his partner in a state of agitation. He ...

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Martin Kruskal, a mathematician at Rutgers university in New Jersey, has two brothers, both of whom are also mathematicians. When my older brother’s oldest child was five, Kruskal recalls, he argued ...

When my students grow too dependent on their calculators, I ask them to find a number that, when multiplied by itself, gives them 2. Students quickly see that since 1² = 1 and 2² = 4, the answer has ...

When you hear the words "rational" and "irrational," they might bring to mind the relentlessly analytical Spock in "Star Trek." If you're a mathematician, however, you probably think of ratios between ...

Number Theory was developed to study the properties of integers and rational numbers. Much of it is motivated by finding solutions to problems involving unknown integers when certain restrictions are ...

CBSE Class 10 Maths Extra Questions for Chapter 1 - Real Numbers are prepared by the subject matter experts to bring you the extract of the complete chapter. These questions will help you quickly ...