Quasi-shuffle products playground
The following is a simple implementation of some quasi-shuffle products introduced in the course "Multiple zeta values and modular forms". This tool evaluates algebraic expressions of indices with certain quasi-shuffle products.
- Input: Index $(k_1,\dots,k_r)$ = [$k_1,\dots,k_r$], Stuffle product = st, Shuffle product = sh, double shuffle (sh - st) = ds, Stuffle product for $g(k_1,\dots,k_r)$ = gst
- Output: Linear combination of indices written as $(k_1,\dots,k_r)$.