wolfram-mathematica

问题 I am building an application package in Mathematica. The application contains multiple packages and refers to other application packages To set everything up, I have used and followed the application packages instructions of the help section of workbench which is also available at:http://reference.wolfram.com/workbench/index.jsp?topic=/com.wolfram.eclipse.help/html/tasks/applications/introduction.html under the Packages and Applications subsection but... I have implemented and tested single

问题 LinkClose[link] "does not necessarily terminate the program at the other end of the connection" as it is said in the Documentation. Is there a way to kill the process of the slave kernel securely? EDIT: In really I need a function in Mathematica that returns only when the process of the slave kernel has already killed and its memory has already released. Both LinkInterrupt[link, 1] and LinkClose[link] do not wait while the slave kernel exits. At this moment the only such function is seemed to

问题 Please Consider : intense = Reverse[Round[Rationalize /@ N[10^Range[0, 3, 1/3]]]]; values = Range[0, 9/10, 1/10]; intensityLegend = Column[Prepend[MapThread[ Function[{intensity, values}, Row[{Graphics[{(Lighter[Blue, values]), Rectangle[{0, 0}, {4, 1}], Black, Text[Style[ToString[intensity], 16, Bold], {2, .5}]}]}]], {intense, values}], Text[Style["Photons Number", Bold, 15]]]]; IntersectionDp1={{1., 588.377}, {2.15443, 580.306}, {4.64159, 573.466}, {10.,560.664}, {21.5443, 552.031}, {46

问题 When I'm trying to get last input expression in Wolfram Mathematica 5.2 using In[-1] I get evaluated output: In[1]:= On[In] 2 + 2 In[-1] Out[2]= 4 During evaluation of In[1]:= In::trace: In[-1] --> In[$Line-1]. >> During evaluation of In[1]:= In::trace: In[$Line-1] --> In[2]. >> During evaluation of In[1]:= In::trace: In[2] --> 2+2. >> Out[3]= 4 How can I get the input expression in unevaluated form? 回答1: You could try InString[] In[1]:= 2 + 2 Out[1]= 4 In[2]:= InString[-1] Out[2]= "\\(2 + 2\

问题 I want to generate a plot like the following I am not sure how to generate a shading even though I can get the frame done. I'd like to know the general approach to shade certain areas in a plot in Mathematica. Please help. Thank you. 回答1: Perhaps you are looking for RegionPlot ? RegionPlot[(-1 + x)^2 + (-1 + y)^2 < 1 && x^2 + (-1 + y)^2 < 1 && (-1 + x)^2 + y^2 < 1 && x^2 + y^2 < 1, {x, 0, 1}, {y, 0, 1}] 回答2: Note the use of op_ in the following (only one set of equations for the curves and

问题 I have a set of points given by this list: list1 = {{3, 1}, {1, 3}, {-1, 2}, {-1, -1}, {1, -2}}; I would like Mathematica to draw a line from the origin to all the points above. In other words draw vectors from the origin (0,0) to all the individual points in the above set. Is there a way to do this? So far I've tried the Filling option, PlotPoints and VectorPlot but they don't seem to be able to do what I want. 回答1: Starting easy, and then increasing difficulty: Graphics[{Arrow[{{0, 0}, #}]

问题 I remember that someone from WRI stated in the official newsgroup that Mathematica 7 still has a working old-fashioned Mathematica Help Browser from Mathematica 5 for compatibility purposes. But I can not find the post where the code for invoking it is given. How to invoke and use this legacy Help Browser in new versions of Mathematica ? 回答1: The old browser will show up if you try to look at documentation for packages that were written in the old format. From the main documentation page,

问题 I am using Mathematica 7 in the notebook interface and I want to rearrange an inequality so that I get a certain variable on one side. For eg. FullSimplify[x^3+L+r>3x^3+2r] Gives L > r + 2 x^3 However, I want : r < L-2x^3 Is there anyway we can instruct FullSimplify to order variables in a particular way? I am using Mathematica for presentation as well so, the way I arrange the variables is important to me. Thanks SR Edit: I tried Reduce, while that works for this example, it does not work

问题 Is there a way to import the results or data (such as matrices) from Matlab to Mathematica automatically ? Or is there any way to run a Matlab program first and then run a Mathematica program automatically ? Thanks for any helpful answers! 回答1: There are at least three approaches to tackling this: 'Through' Java, using Mathematica's JLink and Matlab's own Java capabilities. Either program can be run from the command line, execute a script and return output as required. Both programs can run

问题 Sometimes, when I open my own notebook, I get the message: This file contains potentially unsafe dynamic content. I do not remember when I started seeing these messages, but it was not long ago. May be 2-3 weeks ago? They do not show all the time. It is my own notebook, that I could close, go sleep, wake up, come open it up again, and I could see the above message, or I could not. Not sure what triggers it. Here is a screen shot of one just happened. I normally just ignore it, and enable