Special presentation device of mathematics curve

The utility model provides a special presentation device of mathematics curve. The difficult drawing of curve, the teacher need mark out various vector sum data, expends time in, hinders the classroomprogress. A special presentation device of mathematics curve which constitutes and includes: lower stand, lower stand (4) upper end are connected through locating pin 16 and are gone up stand (14), go up the stand upper end and connect bottom end rail (17) through adapter sleeve (15), and frame (20) is connected to the bottom end rail, have in the frame grating plant (26), and grating plant is last to have perpendicular groove (18) and cross slot (19), erect the groove and the cross slot in install LED lamp pearl (28), last vertical axis vector magnetic support (27) and the cross axle vectormagnetic support (29) still placed of grating plant, frame upper portion is connected with connection box (30), has A. O. Standing groove (24) on going up the connection box, has placed vector sign A.O. (25) in the A. O. Stand