Thu, 28 Nov 2024 00:00:44 +0530

Number system

Types of Numbers In our number system the numbers are classified as Natural Numbers: Natural numbers are known as counting numbers that contain the positive integers from 1 to infinity. Expressed as, N = {1, 2, 3, 4, 5, ……….} Whole Numbers: all natural numbers along with 0 are whole numbers Expressed as, W = {0,1, 2, 3, 4, 5, ……….} Integers: Integers are the set of all whole numbers but it includes a negative set of natural numbers also. Expressed as, Z = { -3, -2, -1, 0, 1, 2, 3} Rational Numbers: Any number that can be written as a ratio of one number over another number is written as rational numbers. Expessed as Q = p/q where q≠0 Irrational Numbers: The number that cannot be expressed as the ratio of one over another is known as irrational numbers Expressed as, P. Real Numbers: All the positive and negative integers, fractional and decimal numbers without imaginary numbers are called real numbers. Expressed as, R