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Skip to 0 minutes and 0 secondsSymbols! They're all around us. Some of them are universal. They symbolise words or phrases or sentences. But, mankind has been using symbols to symbol numbers ever since ancient times. The ancient Egyptians used Hieroglyphics to symbolise words and to symbolise numbers. We're going to take a look at some ancient Egyptian number systems in a few minutes The Romans also used Roman numerals, In fact, Roman numerals were used throughout Europe for hundreds of years. There was a Greek numeral system, an ancient Babylonian number system, and even today we use symbols to symbolise numbers. in bar codes, when we want to label a product.

Skip to 1 minute and 0 secondsUsually the label consists of many, many numbers, a long list of numbers, a long list of digits, and a bar code makes it easy for a machine to read these symbols and decode the numbers. How good are you at decoding bar codes? Or ISBN codes, the codes that code library books? We'll see that in this section, so I hope you enjoy the week.

Introduction to symbologies

We will be looking at symbologies in a minute, but perhaps you already have some questions? If so, you can discuss this with us in the discussion below!

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This video is from the free online course:

Maths Puzzles: Cryptarithms, Symbologies and Secret Codes

Weizmann Institute of Science