t3toolbox.corewise.corewise_neg
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.. py:function:: t3toolbox.corewise.corewise_neg(X: NDArrayTree) -> NDArrayTree

   Negate nested objects, X -> -X.

   .. rubric:: Examples

   >>> import numpy as np
   >>> import t3toolbox.corewise as cw
   >>> X = (np.ones(3), (1, (), np.ones(2)))
   >>> print(cw.corewise_neg(X))
   (array([-1., -1., -1.]), (-1, (), array([-1., -1.])))