If I were to evaluate a single numerical integral, I can use evalf( Int(,method = _d01amc)).
But when the expression say is created by a built in function, Student[VectorCalculus][Hessian], from a complicated expression involve integrals. The resulting expression does not have the option "method = _d01amc". It then takes a long time to evaluate.
See this "HE" variable for example. HE.txt
value(HE); # takes a long time
evalf(HE); # takes a long time
Is there a way to evaluate "HE", using ",method = _d01amc" wherever necessary?