First commit in branch devoted to tensor algebra over generic modules
Continued to build comp.py
Added Kronecker delta
More doctests in comp.py
More doctests in comp.py
Completed doctests in comp.py
Added import in comp.py doctests
Started to implement tensors over free modules
Continued to implement tensors over free modules
Added output_formatter in FreeModuleTensor
Added more stuff + documentation in tensors over free modules
Added more stuff + documentation in tensors over free modules
Finished FiniteFreeModule + more doc
Added comparison operators + common_basis function in FreeModuleTensor
Implemented tensor arithmetics
Modif of _an_element_ and __eq__
Added __call__ operator for tensors + more doctests
Added tensor self-contraction + minor modifs
Merge branch 'sagemanifolds + Sage 6.1' into comp_modules
Added free_module_tensor_spec.py