A set of worksheets introducing modulo mathematics and progressing to one of its applications, RSA encryption. The spreadsheet is formatted for printing. In addition, the RSA demonstration sheet could ...
One of my fellow contributors here recently wrote a post about leap years and why we have them. This reminded me of modular arithmetic and the formula for calculating the day of the week for any date ...
You may never have heard of modular arithmetic, but you use it every day without the slightest difficulty. In this system, numbers wrap around when they reach a certain size called the modulus; it is ...
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