Uncover the ways Benjamin Burton (the company) bills you and cancel your Modular Arithmetic subscription.
Note before cancelling:
1. The basic idea is that you choose a modulus N, and then reduce every number to one of the integers 0,1,2,...,Nā1 according to what remainder it leaves when dividing by N.
2. You also cannot divide if the right hand side has any common factors with the modulus.
3. It lets you choose a fixed modulus, and then make lots of calculations without having to press a "mod" button again and again.
4. This app supports external keyboards, Siri Shortcuts, and (on iPad) Slide Over, Split View, and multiple windows.
5. It features throughout mathematics and computer science, and has applications from cryptography to barcodes to music.