Recent questions tagged wolfram

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wolfram mathematica - After submitting a .m batch job with Slurm, can I edit my .m file without changing my original submission?

Say I want to run a job on the cluster: job1.m Slurm handles the batch jobs and I'm loading Mathematica to ... output? :( Thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - How to make ImageTransformation produce an anamorphic version of image

I'm experimenting with the ImageTransformation function to try to make anamorphic versions of images, but with ... be greatly appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - simple question on passing data between functions

Simple question, but I am asking just to make sure I am not overlooking an obvious solution which can be much ... had there to make it work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - Why do I have to evaluate this twice?

I cannot figure out why I have to evaluate this twice (in Mathematica 7) for the assignment to take. First ... generated. Why does this happen? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - How to choose the numbers shown on the axes of a plot in mathemetica?

I have already checked all the examples and settings in the Mathematica documentation center, but couldn't find any example ... PI,2PI,3PI,...? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - controlling order of variables in an expression

In Mathematica, how do you change the order of importance of variables? for example: if i enter b+c+a+d, i ... use it where + is non-commutative See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - Preventing "Plus" from rearranging things

The following code creates a diagram of a certain calculation. My problem is that even though the terms in denominator ... ), FontSize -> 30] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - Adaptive gridlines

I want to use gridlines to create an effect of millimeter graphing paper on a 2d graph, to show how multi- ... most element is like off grid. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - custom function with non-standard evaluation (behaves like Table)

I'd like a function AnyTrue[expr,{i,{i1,i2,...}}] which checks if expr is True for any of i1,i2... It should be as ... 2, 4, 5}}, EvenQ[a + b]]] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - Extending cell definition to CellFrameLabels definition

I'm in the process of creating a notebook that contains a style to write documents. I would like Mathematica to ... not be able to modify. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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406 views

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wolfram mathematica - How to annotate multiple datasets in ListPlots

Frequently I have to visualize multiple datasets simultaneously, usually in ListPlot or its Log-companions. Since the ... datasets in a plot? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - tips for creating Graph diagrams

I'd like to programmatically create diagrams like this (source: yaroslavvb.com) I imagine I should use GraphPlot ... ] (source: yaroslavvb.com) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - Consistent size for GraphPlots

Update 10/27: I've put detailed steps for achieving consistent scale in an answer. Basically for each ... graph operations are welcome. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

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wolfram mathematica - How to determine PlotRange to include all of graphics?

Given Graphics object, how do I determine the range of coordinates needed to include all of graphics? Basically ... wrong result for PlotRange See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

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wolfram mathematica - Conversion of expressions by the FrontEnd

As I learned recently there are some types of expressions in Mathematica which are automatically parsed by the FrontEnd. ... a way to see them? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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wolfram mathematica - VertexCoordinate Rules and VertexList from GraphPlot Graphic

Is there any way of abstracting the vertex order that GraphPlot applies to VertexCoordinate Rules from the (FullForm or ... node, as in gp2) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

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wolfram mathematica - Generating Combinations

Every time I have to do this I "invent" a different way. Time to standardize. I suspect there is some default ... in the input list, of course. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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543 views

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wolfram mathematica - How to abort evaluation of a sequence of inputs?

By default pressing Alt+. or calling Abort[] within the evaluation causes abort of the currently evaluating input. ... also cancel this queue. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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269 views

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wolfram mathematica - Pattern to match only "children" of certain elements

I would like to be able to have a pattern that matches only expressions that are (alternately: are not) children ... at all with just patterns? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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319 views

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wolfram mathematica - How to prepend a column to a matrix?

Ok, imagine I have this Matrix: {{1,2},{2,3}}, and I'd rather have {{4,1,2},{5,2,3}}. That is ... and more code. Isn't this built in somehow? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

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wolfram mathematica - Checking if a symbol is defined

Is there an easy way to check if there's a definition for x? I need a function that takes something of the form ... x,y in some set of values See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

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wolfram mathematica - Efficiently Working with (and generating) Large Text Files

As part of my work, I am working with very large text files and, in part, analyzing them for word and phrase ... put up - thanks to all again] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - Saving plot annotations

Yesterday, while adding some timing plots to the "Optimally picking one element from each list" question ... StackOverflow API from Mathematica See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

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wolfram mathematica - How to define part of a Manipulate control variable definition to reduce code duplication

This is a little related to this question Define control as variable in Mathematica But the above question did not ... all the answer and help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wolfram mathematica - SaveDefinitions considered dangerous

SaveDefinitions is a nice option of Manipulate. It causes Manipulate to store any definitions used for its creation inside ... be used by them? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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325 views

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wolfram mathematica - Executing code in v.5.2 kernel from within v.7.01 session through MathLink

I have Mathematica 7.01 and Mathematica 5.2 installed on the same machine. I wish to be able to evaluate code in ... returned by v.5.2 kernel. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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679 views

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wolfram mathematica - How to export graphics in "Working" style environment rather than "Printout"?

I have learned recently that Export in Mathematica uses by default the "Printout" screen style environment rather ... does not affect Export. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

1 answer

wolfram mathematica - The best way to construct a function with memory

Good day, I have some very slooooow and complicated function, say f[x,y]. And I need to construct detailed ... f may contain 10000-50000 points? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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