This is a documented interactive python script supplementing the article 

"An experimental numerics approach to the terrestrial brachistochrone" 
GAMM Archive for Students (2022)
doi: 10.14464/gammas.v4i1.512

After some preliminary reflections (plots) about the classical brachistochrone it solves the terrestrial brachistochrone problem  numerically (numpy) and then verifies a qualified guess  symbolically (sympy). 

