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, ...

Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ...

Mathematics students often encounter confusion when distinguishing between rational and irrational numbers. However, mastering this fundamental concept becomes straightforward once you understand the ...

Fear. Every human on the planet experiences fear. Sometimes, as we grow older, we get over our fears. Sometimes, as we get older, we develop new fears. When you think about things you fear, you will ...

Want to help your eighth-grader master math? Here are some of the skills your child will be learning in the classroom. Understand rational and irrational numbers. Know that a rational number can be ...

Dr. Cathy Frank answers the question: 'Difference Between Anxiety And Phobia?' — -- Question: What is the difference between anxiety and phobia? Answer: A phobia is a type of anxiety. It's an ...