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Aug
4
comment Laplace: from differential equation to transfer function
@Phab I do not have 10.2, but I just tried it on 10.1 and it works: !Mathematica graphics so I really do not know why it would not work in 10.2. I am waiting for version 11 before I upgrade again.
Aug
3
comment How to clear everything in Mathematica?
try CleanSlate package I do not know if it still works on V 10 or not. CleanSlate, tries to do everything possible to return the kernel to the state it was in when the CleanSlate.m package was initially loaded (I myself, when I want to make sure everything is clear, just restart the kernel)
Jul
31
comment Is there a better way to get nice looking equations in output?
try MaTeX
Jul
22
comment Easy way to add another parameter to Manipulate
Then suddenly I decide I want to add a slider for k I am also little confused in how to help. Why can't you just add a slider for k in the same way you did for the tt? Without explaining more the user functionality you are trying to achieve, this would be the obvious way to do it. Also, making everything in just one Manipulate will simplify things. Manipulate only runs in the UI, so making it work as a function to be called indirectly is a little strange to me.
Jul
21
comment Easy way to add another parameter to Manipulate
why put Manipulate inside DynamicModule? Manipulate is already a DynamicModule? can you not just do everything using Manipulate directly?
Jul
21
comment Use of MuPad code into mathematica
Mupad code is pretty much Maple code for the most part. I use Maple differential equations code as is inside Mupad notebook all the time. See this for some information on Maple/Mathematica code conversions. how-can-i-transfer-mathematical-expressions-between-mathematica-and-maple If you have specific mupad code which does not run in Maple as is, then only choice I know about is manual conversion.
Jul
21
comment Scoping all symbols
Welcome to the world of dynamic interactive languages programming. One replaces the flexibility of coding by more emphasis on the programmer to use their eyes much more to catch errors. In strongly static compiled languages, the compiler can catch many errors or issue warnings, but then one loses the flexibility of quick interactions and the dynamic nature of programming. The problems you describe are not new to Mathematica. Any interactive language will have such problems (Maple, Matlab, Julia, Python, Ruby, Perl, etc...)
Jul
20
comment How do I “evaluate in place” programmatically? Need to evaluate Defer[] result in non-interactive setting
I wish Mathematica documentation for Defer would mention such method. Nothing there that mentions how to evaluate Defer expressions other than evaluate in place method.
Jul
20
comment How do I “evaluate in place” programmatically? Need to evaluate Defer[] result in non-interactive setting
@ilian and jens thanks! Yes, this did the trick. I spend long time searching and never saw this trick. Please feel free to post this as answer if you like.
Jul
12
comment Huge matrices crashes in Mathematica
How many GB of ram do you have?
Jul
11
comment Partial derivatives of an implicit equation
They are not the same. Since in your method, you set Dt[y,x] to zero as you assumed that y is not function of x. There is no corresponding action done when one just solves for z and then take derivative of the result w.r.t x. That is why the expression I got was much more complicated. I assume your method is what one should do, as the result you obtain is much simpler ;)
Jul
11
comment Partial derivatives of an implicit equation
I like your solution. I do not understand now why I do not get the same answer as your solution. So I assume I am doing something wrong by solving for z and then taking derivative. So will delete my answer since I need to check why it is different.
Jun
29
comment Problem with NDSolve: derivative interpreted as square
Clear[y, x]; sol = NDSolve[{y'[x] == y[x], y[0] == 1}, y[x], {x, 0, 1}] !Mathematica graphics
Jun
28
comment my Mathematica has turned orange and not able to find out why
@SjoerdC.deVries added screen shot. It is under display->Calibrate color. If you can answer this, so I can accept and close this. Your hint made me try this.
Jun
28
comment my Mathematica has turned orange and not able to find out why
@SjoerdC.deVries I just did. I run the control panel->Calibrate color-> and clicked next to all options (did not actually change anything) and then clicked apply. Then I restarted Mathematica. And now the color orange has gone ! and it is now turned back to the way it was. If you like to post this as an answer, so I can accept it. This might be useful if it happens to someone in the future.
Jun
28
comment my Mathematica has turned orange and not able to find out why
@SjoerdC.deVries added result to my question.
Jun
28
comment my Mathematica has turned orange and not able to find out why
@ilian well, ok, but I am afraid to break something, it is only Mathematica which turned orange after the windows update. But if there is no other solution, then will try to do this later on. thanks for the suggestion.
Jun
28
comment my Mathematica has turned orange and not able to find out why
@Mr.Wizard No, the monitor is fine. I have 2 monitors, new, and they all bright and working fine. Mathematica remain orange on both monitors. All my others apps are not orange. Well, it is not a huge problem for now, as the notebook interface has the white background still. So I can live with it. But thought to check in case it is a know issue or someone can suggest something.
Jun
28
comment How to export images in EPS format that can be opened in CorelDraw
You should use Linux, then all what you have to do is click on the file ;) but I would not even save from Mathematica as eps. You could save the image to pdf, and then crop it then convert it to eps, like this: pdfcrop --margins 10 --clip image.pdf image.pdf then pdftops -f 1 -l 1 -level3 -eps image.pdf pdfcrop comes with texlive. Very nice program. It removes all empty space around the image from the pdf. I have script that does the above for all my pdf images.
Jun
27
comment How to get arrowheads scaled to be a fixed fraction of the arrows' lengths?
Similar to above. arrow[{pt1_, pt2_}] := {Arrowheads[0.002 EuclideanDistance[pt1, pt2]], Arrow[{pt1, pt2}]}; arr = arrow[#] & /@ {{{1, 0}, {0, 1}}, {{3, 2}, {1, 0}}, {{0, 5}, {3, 2}}, {{-5, 0}, {0, 5}}, {{3, -8}, {-5, 0}}, {{16, 5}, {3, -8}}, {{-5, 26}, {16, 5}}, {{-39, -8}, {-5, 26}}}; Graphics[arr] screen shot !Mathematica graphics