by John on (#5ZG4K)
If you’ve taken calculus, and someone asks you what the derivative of x5 is, you can say without hesitation that it’s 5x4. Now suppose they come back and say, “I’m sorry. I forgot to give you any context. Here x5 is a polynomial in the field of 343 elements.” It turns out that this additional […]The post Discrete derivatives first appeared on John D. Cook.