fv_variations_randn
===================

.. py:function:: t3toolbox.backend.fv_operations.fv_variations_randn(variation_shapes, stack_shape = (), use_jax = False)

   .. code-block:: python

      def fv_variations_randn(
              variation_shapes:   VariationShapes,
              stack_shape:        typ.Sequence[int] = (),
              use_jax:            bool = False,
      ) -> Variations:


   I.i.d. standard-normal variation cores of the given variation shapes (and stack).