def eval(self, x, y, z):
        """Evaluate the function in (x, y, z).
        The function is rotationally symmetric around z.
        """
        ro = np.sqrt(x**2 + y**2)
        zs, xs = ro.shape
        v = self.eval_xz(ro.ravel(), z.ravel())
        return v.reshape(zs, xs)
def eval(self, x, y, z):
        
        ro = np.sqrt(x**2 + y**2)
        zs, xs = ro.shape
        v = self.eval_xz(ro.ravel(), z.ravel())
        return v.reshape(zs, xs)
def eval ( self , x , y , z ) : ro = np . sqrt ( x ** 2 + y ** 2 ) zs , xs = ro . shape v = self . eval_xz ( ro . ravel ( ) , z . ravel ( ) ) return v . reshape ( zs , xs )
Evaluate the function in (x, y, z).
        The function is rotationally symmetric around z.
Evaluate the function in ( x y z ) . The function is rotationally symmetric around z .