a slightly recursive defn
a slightly recursive defn

madan96/sympy,kaushik94/sympy,aktech/sympy,chaffra/sympy,aktech/sympy,skidzo/sympy,jaimahajan1997/sympy,jaimahajan1997/sympy,yashsharan/sympy,souravsingh/sympy,madan96/sympy,madan96/sympy,skidzo/sympy,aktech/sympy,chaffra/sympy,skidzo/sympy,kaushik94/sympy,chaffra/sympy,jaimahajan1997/sympy,yashsharan/sympy,souravsingh/sympy,souravsingh/sympy,kaushik94/sympy,yashsharan/sympy