It is Z from the German for "to count". The counting, or natural numbers are denoted by N.
1 Sum of first n natural numbers = n(n+1)2[Formula.]2 Arthmetic mean of first n natural numbers = Sum of the numbers n[Formula.]3 = n(n+1)2n = n+124 So, the Arthmetic mean of first n natural numbers = n+12
The sum of the first n natural numbers is n*(n+1)/2 There are n numbers so their mean = (n+1)/2
Any symbol can be used to denote a set of integers. The set of all integers is denoted by Z, and the set of natural numbers by N.
The symbol is typically written N but it's actually with a double diagonal line ℕ. It includes 1,2,3,4,5,6 etc (not 0). Z+ means the same.
Mean = (sum of the n numbers)/n
zhalen EDIT: Could be written N U {0} Here U represents union, ie the set of natural numbers and zero.
N
N=Natural Numbers For Example 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 and so on
The main subsets are as follows:Real numbers (R) can be divided into Rational numbers (Q) and Irrational numbers (no symbol).Irrational numbers can be divided into Transcendental numbers and Algebraic numbers.Rational numbers contain the set of Integers (Z)Integers contain the set of Natural numbers (N).
Because any natural number or whole number, n, can be expressed as a ratio of the two integers n and 1: in the form n/1. And integers are the same as whole numbers.
#include<stdio.h> main(void) { int n; int i; printf("Type n: "); scanf("%d",&n); for(i=1;i<=n;i++) //generates natural numbers from 1,....,n. printf("%d\n",i); //prints these numbers to standard output }