def inertia_matrix(dyadic, rf):
    return Matrix([[dot(dot(dyadic, i), j) for j in rf] for i in rf])
Fake for methods/functions that are not implemented in the production
dataset/ETHPy150Open pydy/pydy/examples/Kane1985/Chapter3/Ex6.14.py/inertia_matrix--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver.py/NotImplementedFake