(self, frame, value)
Sets the velocity Vector of this Point in a ReferenceFrame.

        Parameters
        ==========

        value : Vector
            The vector value of this point's velocity in the frame
        frame : ReferenceFrame
            The frame in which this point's velocity is defined

        Examples
        ========

        >>> from sympy.physics.vector import Point, ReferenceFrame
        >>> N = ReferenceFrame('N')
        >>> p1 = Point('p1')
        >>> p1.set_vel(N, 10 * N.x)
        >>> p1.vel(N)
        10*N.x
Sets the velocity Vector of this Point in a ReferenceFrame.
Sets the velocity Vector of this Point in a ReferenceFrame .
def set_vel(self, frame, value):
        """Sets the velocity Vector of this Point in a ReferenceFrame.

        Parameters
        ==========

        value : Vector
            The vector value of this point's velocity in the frame
        frame : ReferenceFrame
            The frame in which this point's velocity is defined

        Examples
        ========

        >>> from sympy.physics.vector import Point, ReferenceFrame
        >>> N = ReferenceFrame('N')
        >>> p1 = Point('p1')
        >>> p1.set_vel(N, 10 * N.x)
        >>> p1.vel(N)
        10*N.x

        """

        if value == 0:
            value = Vector(0)
        value = _check_vector(value)
        _check_frame(frame)
        self._vel_dict.update({frame: value})
def set_vel ( self , frame , value ) : if value == 0 : value = Vector ( 0 ) value = _check_vector ( value ) _check_frame ( frame ) self . _vel_dict . update ( { frame : value } )