Wednesday, July 21, 2010

TYPES OF NUMBERS

-->
A number is a mathematical object used in counting and measuring. The most familiar numbers are the natural numbers or counting numbers
There are different types of numbers as follows:-
Imaginary numbers: These are all based on the imaginary number i. This imaginary number is equal to the square root of negative one. Any real number times i is an imaginary number.
Real number: This group is made up of all the Rational and Irrational Numbers. The ordinary number line encountered when studying algebra holds real numbers.

Complex numbers: A Complex Numbers is a combination of a real number and an imaginary number in the form a + bi. The real part is a, and b is called the imaginary part.

Rational Numbers: Integers, whole numbers, Natural Numbers. This is any number that can be expressed as a ratio of two integers.
Irrational numbers: This is any number that cannot be express as an integer divided by an integer, (not counting, no pun intended, imaginary or complex numbers).These numbers have decimals that never terminate and never repeat with a pattern.

No comments:

Post a Comment