I am trying to do a substitution as shown in the attached document. I know variants of this question have been asked before but dont quiet get what to do. It is problem with algsubs and how it handles denominators I think. Can get substiturion to work for simple fractions but more complicated ones fail. Would appreciate any guidance here.

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) Error, (in algsubs) cannot compute degree of pattern in a

 

Download UHG5_substitution.mw

Using maple 16. When I run a worksheet it adds in extra rows of the red >s. The attached example was run 3 times. How do I stop this happening?

>  >  >  >  >  >  >  >  >  >  >  >  >  >  >  (1) >  >  >  >  >  (2) >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >  >

 

Download worksheet_issue.mw

Hello

Am trying to convert a vector projection to matrix type output.

Attached is a sample worksheet.

 

Transformation_matri.mw 

 

In the attached worksheet there are 2 numbers. The first is the answer a got, the second is the offical correct answer.Ther look entirely different. Numerically they are the same. I wondering is there a way to simplify my answer?Rationalize_ans.mw 

I am reading a book "The Foundatiosn of  Celestial Mechanics" available to download here http://ads.harvard.edu/books/1989fcm..book/  in pdf. There some excerise questions to do at the end of each chapter. I'm at the end of Ch 1! I haven't used the VectorCalculus side of Maple (16) and am rusty on the subject, (read as did 30 years ago)

How would i do this question?