Integers

I have discussed about what are integers in my post earlier also, but i wanted to discuss this in more details and know why is there a need of integers. There are many sites now a days who gives you complete online help to calculate integers. Visit these sites to improve your knowledge on this. Lets begin...

Introduction of integers:- Integers are set of positive numbers and negative numbers along with zero. They are also called as directed numbers, Each directed number is descreibed in terms of its numerical value an the direction. These numbers are used whenever opposites are involved.

On the number line, 0 is the origin or the starting point. All the natural numbers are to the right of 0. Have you looked at the number line. Look and observe it.

Need for Integers:- Why do you think integers are used? For example when you measure the height of a tree, it is always taken from ground level or the surface of the earth to its top. Here the ground level may be considered as 0, that is the origin. Same as the number line 0 is the origin(mentioned above). Therefore to measure them we need integers.

To distinguish numbers on the sides of 0(either above or below 0 and to the right and left of 0) opposite signs (+positive and -negative) are used. The positive numbers are mentioned in the right of the origin or zero and the negative numbers are mentioned to the left of the origin or zero.




To understand the concept better look at the image above, this gives you a clear picture on number line. Let me know you comments on this. Was this post useful? Feel free to put your views.