.. THIS FILE IS GENERATED BY `gen_doc.{py|sh}` !DO NOT EDIT THIS FILE MANUALLY!==============fluid.backward==============.. _api_fluid_backward_append_backward:append_backward---------------.. autofunction:: paddle.fluid.backward.append_backward :noindex:.. _api_fluid_backward_calc_gradient:calc_gradient-------------.. autofunction:: paddle.fluid.backward.calc_gradient :noindex: