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Question: Difficulties trying to simplify analytically an expression

Question:Difficulties trying to simplify analytically an expression

stanto 0
August 04 2012
0

Hello,

Complete newbie here and have being reading for the last two days.

A question that I Googled a *lot* before asking and gave up.

I have this:

Dh :=  (a, Db, b, g) -> a*Db*sqrt(tan(b)^4/(cos(g)^4*(tan(g)+tan(b))^4)+tan(g)^4/(cos(b)^4*(tan(g)+tan(b))^4)) 

 

sqrt((a*tan(g)*Db/(cos(b)^2*(tan(b)+tan(g))^2))^2+(-a*tan(b)*Db/(cos(g)^2*(tan(b)+tan(g))^2))^2)

 

(Hmmm... not even sure how to enter the maple code properly - apologies)

I have "played" around with 2D vs. 1D and also defining it as an expression and/or function, etc.

 

Note that: a,b,g and Db are the four variables.

 

I tried "all" parameters of simplify to no avail at simplifying this expression!

EX:trig , ... ,SquareOf, etc. to no avail.

What I get is a much longer expression with no fractions.

We clearly see that at least the a and Db can come out of the square root.

I'm surprised Maple will not even do that, assuming there are other simplifications.

Thanks in advance!

 
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