'x.__neg__() <=> -x
Numerical negative, element-wise.
Example usage:
>>> a = mx.sym.Variable(\'a\')
>>> a
<Symbol a>
>>> -a
<Symbol _mulscalar0>
>>> a_neg = a.__neg__()
>>> c = a_neg*b
>>> ex = c.eval(ctx=mx.cpu(), a=mx.nd.ones([2,3]), b=mx.nd.ones([2,3]))
>>> ex[0].asnumpy()
array([[-1., -1., -1.],
[-1., -1., -1.]], dtype=float32)'

def __neg__(self):

    return self.__mul__((-1.0))
