Formal derivative
operation on elements of a polynomial ring which mimics the form of the derivative from calculus
en-GB/ˈfɔːml dɪˈɹɪvətɪv/
en-US/ˈfɔɹməl dɚˈɪvɪtɪv/
operation on elements of a polynomial ring which mimics the form of the derivative from calculus