Question

What are real numbers

Answer 1

A real number is a value that represents a quantity along a continuous number line. Real numbers can be ordered. The symbol for the set of real numbers is , which is the letter R in the typeface "blackboard bold".

The real numbers include: counting (natural) numbers (){1, 2, 3, ... },
whole numbers {0, 1, 2, 3, ... }, integers (){... , -3, -2, -1, 0, 1, 2, 3, ...},
rational numbers () (such as -½, 6.25, ) and
irrational numbers