gkokovidis

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20 years, 291 days
Draeger Medical Systems, Inc.

 

 

Regards,
Georgios Kokovidis
Dräger Medical

MaplePrimes Activity


These are replies submitted by gkokovidis

I tried to download your worksheet, but it was blank.   

A simple example using the sequence command to plot a parabola a*x^2 with the variable a changing over a specified range.

>restart:

>p1:=seq(a*x^2,a=1..10):

>plot([p1],x);

P.S. Try reposting your worksheet. 

Later edit.  A more compact version of the code above:

>plot([seq((a*x^2),a=1..10)],x);

Regards,
Georgios Kokovidis
Dräger Medical

My guess would be Eithne Murray, based on the combstruct hint given above.

 

Regards,
Georgios Kokovidis
Dräger Medical

If these awards existed 10+ years ago I would have voted for Joe.  Back in the day, I bought my first student version of Maple just to try Joes "Syrup" program.  I still use it to check my work.  Thank you Joe. 

Regards,
Georgios Kokovidis
Dräger Medical

The Maple Applications Center has some interesting articles and associated worksheets that go with them.  The following is directly related to the above thread and deals with a real world problem.  The title of the article is: 

The geometry of intersecting tubes applied to controlling a robotic welding torch.

 

www.maplesoft.com/applications/app_center_view.aspx

You have to log on in order to download the worksheet.

 

Regards,
Georgios Kokovidis
Dräger Medical

Looking at your function, are you trying to plot:

 

y = 1/18*(3*x+1)^2/x

 

or are you trying to plot:

 

y = 1/18*(3*x+1)^(2/x)

The way you have it, you are plotting the first one.  Just checking to see if that is what you have intended.

 

 
Regards,
Georgios Kokovidis
Dräger Medical
Pertaining to the original example, solve by itself does not return {x = 2/3*Pi-4/3*Pi*_B2+4*Pi*_Z4} unless the environment variable _EnvAllSolutions is set to true. I mention this just in case others try to recreate the result and only see one solution returned. >_EnvAllSolutions := true: Regards, Georgios Kokovidis Dräger Medical
After plotting, you can enter your range into the Roots command found in the Student[Calculus1] package. >restart: >with(Student[Calculus1]): >Roots(cos(x/2)-1/2,x=0..12); [2/3*Pi, 10/3*Pi] Regards, Georgios Kokovidis Dräger Medical
Greetings. From my own experience here at Mapleprimes, I see new users using lower case "p" to represent "pi" instead of using "Pi". I don't believe this warrants it's own line in the top 10, but it might want to be combined with item 10: The exponential function is exp, and π is written as Pi. Regards, Georgios Kokovidis Dräger Medical
Take a look at the following link for a description between the built in local optimization routines and the optional Global Optimization Toolbox that you have to purchase. For a description of the routines used by Maple, at the prompt, type the following to bring up the help pages. >?Optimization for a general overview. >?Optimization/Methods for a description of the methods used by the Optimization package. Regards, Georgios Kokovidis Dräger Medical
Congrats to Acer. Very well deserved. I often study Acers' replies to get a better understanding of the more advanced ways people are using Maple. Thanks for being a part of this community. Regards, Georgios Kokovidis Dräger Medical
See attached worksheet. The 2 equations look to be equivalent. View 221_4865_InvJacobi.mw on MapleNet or Download 221_4865_InvJacobi.mw
View file details Regards, Georgios Kokovidis Dräger Medical
From the help pages: Important: The evalb command does not simplify expressions. It may return false for a relation that is true. In such a case, apply a simplification to the relation before using evalb. >evalb(simplify(sin(1)/cos(1) - tan(1) = 0)); true You can also force floating point evaluation: >evalb(sin(1.)/cos(1.) - tan(1.) = 0); true The above methods do not work for the symbolic case of (sin(x)^3)/(cos(x)^3) because Maple does not simplify this any further. Regards, Georgios Kokovidis Dräger Medical
The worksheets for this book can be found here. There are plenty of sites that have material that you can view online or in pdf format with accompanying worksheets that you can download and execute. You can preview some of the Maple books online using google book search. Regards, Georgios Kokovidis Dräger Medical
As a starting point, take a look at the help files for "simplify". >?simplify >restart: >d/h = ((((T / SK) + (T * (-0.390527))) / (((T + (-0.421559)) * (SK + (SK + ((SK / (SK + (((T * (-0.39954)) + (SK + (T / SK))) + SK))) + SK)))) / T)) * (-0.376824)); d/h = -.376824*(T/SK-.390527*T)/(T-.421559)/(3*SK+SK/(3*SK-.39954*T+T/SK))*T >simplify(%); Regards, Georgios Kokovidis Dräger Medical
Now I see it. I am in agreement with all of the above. Thank you. I will keep this one in the back of my head. Question. What tools do other users of Maple use when they want to get a "second opinion" on the answer that is displayed. For numeric calculations, I check the output with Matlab. What do others do, using the above equation as an example, with -infinity and +infinity as ranges? Regards, Georgios Kokovidis Dräger Medical
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