(self, a, w)
return a + self._rand.randn(*a.shape) * w
a + r * w,
        where r is random array with nominal distribution N(0,1) and r.shape == a.shape
a + r * w,
        where r is random array with nominal distribution N(0,1) and r.shape == a.shape
a + r * w where r is random array with nominal distribution N ( 0 1 ) and r . shape == a . shape
def add_randn_pads(self, a, w):
        """a + r * w,
        where r is random array with nominal distribution N(0,1) and r.shape == a.shape
        """
        return a + self._rand.randn(*a.shape) * w
def add_randn_pads ( self , a , w ) : return a + self . _rand . randn ( * a . shape ) * w