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
