Dear All,

I have problems connected with a double integration in Maple.

The simplified task with its description is in the uploaded file.

Any help will be appreciated.

Thank You! 

mp_qn_double_integra.mw

For example, how to round 45.67845 up to 3 digits after comma?

expected answer - 45.678

Dear Maple Users,

I do need to find the intersection of two surfaces which defined by two equations eq1 and eq2, (see attached file).

There was similar question on the MP: 
http://www.mapleprimes.com/questions/127821-How-To-Plot-The-Intersection-Of-Three-Surfaces

, but that doesn't work in my case. And I can't understand why....

Dear Maple Users,

I can't understand why fsolve returns "x,y in the equations and are not solved for"???

the example in attached file. qn_abt_Int.mw

thank you in advance! Any help is appreciated.

Denis

Dear Maple Users!

I'm quite beginner in Maple. I will appreciate all of your help and a guidance.

I have written the simple procedure (in attached file) and it takes about 40 sec to make

one cycle on i5 2.8Ghz, 4Gb RAM, Win7x64, Maple 14 x64. I believe that it can be solved much 

more faster.

  qn_mp_v1.mw

What are the ways to speed up my procedure?