Learn how to describe a set by saying what properties its members have.

Forget everything you know about numbers. ... In fact, forget you even know what a number is. ... This is where mathematics starts.

A set is a collection of things, usually numbers. We can list each element (or member) of a set inside curly brackets like this

Sets and Venn Diagrams. Introduction To Sets. Set Calculator. Intervals. Set Builder Notation. Set of All Points (Locus).

Interval: all the numbers between two given numbers. Example: all the numbers between 1 and 6 is an interval. Yes.

There are sets of numbers that are used so often they have special names and symbols ... Natural Numbers ... The whole numbers from 1 upwards. (Or from 0 upwards in some fields of

A set is a collection of things. ... For example, the items you wear is a set these include hat, shirt, jacket, pants, and so on.

We can create functions that behave differently based on the input (x) value. A function made up of 3 pieces. when x is less than 2, it gives x2,.

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

Whole Numbers are simply the numbers 0, 1, 2, 3, 4, 5, ... (and so on) ... No Fractions ... (But numbers like , 1.1 and 5 are not whole numbers.)