Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Irrational numbers such as pi or the square root of 2 have always fascinated humankind. After all, they symbolize infinity better ...

👉 Learn how to use the Rational Zero Test on Polynomial expression. Rational Zero Test or Rational Root test provide us with a list of all possible real Zeros in polynomial expression. Rational Zero ...

It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A broad new method can help settle this ancient question. In June 1978, the ...

Irrational numbers such as pi or the square root of 2 have always fascinated humankind. After all, they symbolize infinity better than anything else: their sequence of digits after the decimal point ...