I have started reading a book called 'What is Mathematics?' by Ian Stewart, and there he explains the number system with a base of 7. Septimal number system. I don't understand how one may write 7^2 in such a system, since we only have numbers 0-6. I don't understand how we represent numbers that exceed symbols we can use from. For eg: 4+4 is given to be '11' instead of '8'. How did we come up with '11'?
2026-03-30 05:24:56.1774848296
How to convert Septimal numbers into Decimal number system.
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