Binomial Expansion CLI Tool This script expands upto n = 18 of an expression using the binomial expansion formula. The Binomial Theorem In essence, any valid expression of the form $(a + b)^n$ can be expanded using the formula: $\sum\limits_{k=0}^{n} \binom{n}{k} (a)^{n-k} (b)^{k}$ Usage python main.py --exp (a + b)^k --exp, is a flag telling the CLI the expression to expand