def evalf(self, prec=None, **options):
        vec = self.zero
        for k, v in self.components.items():
            vec += v.evalf(prec, **options) * k
        return vec
Implements the SymPy evalf routine for this quantity.
dataset/ETHPy150Open sympy/sympy/sympy/vector/basisdependent.py/BasisDependent.evalf