arabic numbers

14
0123456789 1 2 4 5 5 Numbers Numbers

Upload: rizwan-sh

Post on 27-Jun-2015

91 views

Category:

Education


0 download

DESCRIPTION

How numerals 0 - 9 got their shape - 0 1 2 3 4 5 6 7 8 9 Do you know why numbers look like they do? Someone, at some point in time, had to create their shapes and meaning. Watch this short presentation and then you will know how our Arabic numbers were originally created a very long time ago and what logic the people that created them used to determine their shapes. It is really very simple and quite creative. You have to admire the intelligence of a person or people that created something so simple and perfect that it has lasted thousands and thousands of years and will probably never change. When the presentation gets to the number "seven" you will notice that the 7 has a line through the middle of it. That was the way the Arabic 7 was originally written, and in Europe and certain other areas they still write the 7 that way. Also, in the military, they commonly write it that way. The nine has a kind of curly tail on it that has been reduced, for the most part nowadays, to a simple curve, but the logic involved still applies

TRANSCRIPT

Page 1: Arabic numbers

012345678912455

NumbersNumbers

Page 2: Arabic numbers

The numbers we write are made up of algorithms, (1, 2, 3, 4, etc.) called Arabic algorithms, to distinguish them from Roman algorithms (I, II, III, IV, etc.). 12455

Page 3: Arabic numbers

12455

The arabs popularized these algorithms, but their origin goes back to the Phoenecian merchants who used them to count and do their commercial accounting.

Page 4: Arabic numbers

12455

Have you ever asked the question why “one” is 1, “two” is 2, “three” is 3...?

Page 5: Arabic numbers

12455

What is the logic that existed in the arabic algorithms?

Page 6: Arabic numbers

12455

Easy, very easy…!

There are angles!

Page 7: Arabic numbers

12455

Look at these algorithms written in their primitive form and check it out! …

Page 8: Arabic numbers

12455

1 angle 2 angles

3 angles 4 angles

Page 9: Arabic numbers

12455

5 angles 6 angles

7 angles8 angles

Page 10: Arabic numbers

124559 angles

Page 11: Arabic numbers

12455

And the most interesting and intelligent of all…..

Page 12: Arabic numbers

12455

Zero angle !

Page 13: Arabic numbers

12455

It is never too late to learn!

Page 14: Arabic numbers

12455

Share it with Share it with your friends….your friends….