Numbers

 Number World

                Basically everynumber is a complex number and complex number is that number which has two parts imaginary part and real part, since every real number can be expressed in the form of complex number, therefore we say taht every number is a complex number.

Irrational number:- Those numbers which cannot be written in the form of p/q e.g., underroot (2,3,5) etc.

Rational Numbers:- Those numbers which can be written in the form of p/q where q≠0 e.g., underroot (2,3,5) etc.

Integers:- Integers are those set of numbers which consists of negative as well as positive numbers but not fractional numbers.

                In a Set form Integer Z can be represented as Z= {-∞...........-4,-3,-2,-1,0,1,2,3,4............∞}

Fractional Numbers:- Those numbers which have decimal part are called fractional numbers.

            e.g., (0.1,0.2,0.3,0.4,0.∞)

            They are present in between the integers.

Negative Integers:-  Numbers which have negative sign but are not fractional are called negative integers denoted by Z^-

                        Z^- = { -1,-2,-3.............-∞}

Positive Integers(Whole Numers):-  Numbers which are positive as well as containing 0 are called positive integers denoted by Z⁺

                Z+ = {0,1,2,3,4,5,6................∞}

Natural Number:- Natural number if the part of whole number starts from 1 upto ∞ and is denoted by N.

            N=  {1,2,3,4,5,6................∞}