Example 10.4.  Construct the bilinear transformation  w = S(z)  that maps the points  [Graphics:Images/MobiusTranformationMod_gr_96.gif]  onto the points  [Graphics:Images/MobiusTranformationMod_gr_97.gif],  respectively.

[Graphics:Images/MobiusTranformationMod_gr_98.gif]     [Graphics:Images/MobiusTranformationMod_gr_99.gif]

Explore Solution 10.4.

Enter the three points and their images and solve for  w = S(z).  

[Graphics:../Images/MobiusTranformationMod_gr_108.gif]




[Graphics:../Images/MobiusTranformationMod_gr_109.gif]

 

 

 

 

Check our work and by looking at the images of  [Graphics:../Images/MobiusTranformationMod_gr_110.gif].  

[Graphics:../Images/MobiusTranformationMod_gr_111.gif]



[Graphics:../Images/MobiusTranformationMod_gr_112.gif]

 

 

 

To visualize the mapping  w = S(z)  we will consider a graph.

[Graphics:../Images/MobiusTranformationMod_gr_113.gif]





[Graphics:../Images/MobiusTranformationMod_gr_114.gif]

[Graphics:../Images/MobiusTranformationMod_gr_115.gif]

[Graphics:../Images/MobiusTranformationMod_gr_116.gif]

[Graphics:../Images/MobiusTranformationMod_gr_117.gif]

 

 

 

 

 

[Graphics:../Images/MobiusTranformationMod_gr_118.gif]





[Graphics:../Images/MobiusTranformationMod_gr_119.gif]

[Graphics:../Images/MobiusTranformationMod_gr_120.gif]

[Graphics:../Images/MobiusTranformationMod_gr_121.gif]

[Graphics:../Images/MobiusTranformationMod_gr_122.gif]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(c) 2006 John H. Mathews, Russell W. Howell