compute the average tensor for a vector of orientations
%returns the Voigt--, Reuss-- and Hill-- average <tensor.tensor.html tensor> of T [TVoigt, TReuss, THill] = calcTensor(ori,T,'weights',w)
% returns the specified <tensor.tensor.html tensor>, i.e. 'Hill' in this case THill = calcTensor(ori,T,'Hill')
% uses geometric mean instead of arithmetric one TGeom = calcTensor(ori,T,'geometric')
tensor.mean SO3Fun.calcTensor EBSD.calcTensor