Arithmetic-Derivative/README.md

Arithmetic Derivative

An arithmetic derivative calculator that uses these simple formulas:

• 0' = 1' = 0;
• if n is a prime, n' = 1;
• if n = ab (a and b > 1), n' = a'b + ab'
• (-n)' = -(n')

More about arithmetic derivative: https://en.wikipedia.org/wiki/Arithmetic_derivative