Rikki updated the layout  about 8 years ago

Commit id: 55b85416b9b87d2e0415dd79f85687948126447c

deletions | additions      

       

There_are_a_few_concepts__.html  In_addition_there_are_a__.html  figures/Screen Shot 2016-03-30 at 9.35.27 AM/Screen Shot 2016-03-30 at 9.35.27 AM.png  div_b_u_Suggested_Exam__.html Suggested_Exam_Problem_From_the__.html