Defination(Number) for BBA 16th Batch

Digit

Decimal Number System           :  0,1,2,3,4,5,6,,7,8,9

Binary Number System             : 0, 1

Octal Number System               : 0, 1,2,3,4,5,6,7

Hexadecimal Number System    : 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E

Integer 

An integer is a number that can be written without a fractional component.

Positive Integer       : 1, 2, 3,…………,300,…4000,

    Zero                   :      0        (non positive, non negative integer)

Negative Integer      : -400, …., -100,…,….  -4, -3, -2,

Natural  Number 

The natural numbers are those which are used for counting and ordering. 

For example:  0,1,2,3,4,5,6…….

Irrational Number

An irrational number is any real number that cannot be expressed as a ratio of integer.

For example: √2, √3, √7                                        I √prime number

Rational Number

 A rational number is any number that can be expressed as the quotient or fraction p/q of two integers , p and q, with the denominator q not equal to zero.

For example: 4, 200, -21, 9.75, 1.33,

Real number

A real number is a value that represents a quantity along a continuous line.

Complex Number

A complex number is a number that can be expressed in the form a + bi, where a and b are real number and i is the imaginary unit.

Imaginary unit

The imaginary unit denoted as i, is a mathematical concept which extends the real number system ℝ to the complex number system ℂ . The imaginary unit's (that satisfies the equation x² = −1) core property is that i² = −1,   i,e  i= √-1

For example: √-2, √-4, 0+√-4, 3-√-8,                        I √negative value