Untitled (the Wolfram Language for Students - Personal Use Only : www.wolfram.com)

Bi(2)_bends_1.gif

Bi(2)_bends_2.gif

Bi(2)_bends_3.gif

Bi(2)_bends_4.gif

Bi(2)_bends_5.gif

Bi(2)_bends_6.gif

Bi(2)_bends_7.gif

Bi(2)_bends_8.gif