# All Questions

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### How to use Buttons to run alternate Manipulate functions

I wish to use Buttons to trigger alternate Manipulates. According to the documentation: "The first argument to Button is the label" ....and the "second argument is the function that will ...
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### Difficulty with Manipulate that has same variables as other code lines in a notebook

If I write this: ...
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### Color points in ListPointPlot3D

I have some 3d points with coordinates and a value assigned to each point. I want to plot the points and depending on the value use a different color. I have tried to use the answer in ListPlot3D - ...
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I try to make designation a = {Subscript[a,1], Subscript[a,2], Subscript[a,3]} but receive mistake $RecursionLimit::reclim: Recursion depth of 1024 ... 1answer 66 views ### Arrange equation in normal form Is there a way, or if not, how could one define a function which takes an equation in any form (for example as given by FullSimplify): $$(A+X_0) x+By=3x$$ and ... 1answer 80 views ### What am I missing!? Simple symbolic sum not simplifying I'm VERY confused: in what universe is the following not zero? FullSimplify[2*Sum[Subscript[f, i], {i, 1, q}] - Sum[2*Subscript[f, i], {i, 1, q}]] Mathematica ... 3answers 97 views ### Testing for a vector of reals [closed] Suppose I define: RealVector[expr_]:=VectorQ[expr,NumberQ[#]&&Head[#]===Real)]; Then: ... 1answer 86 views ### How to simulate Placed in workaround for PlotLegends ParametricPlot bug? I'd like Legended output for call like: ... 2answers 211 views ### Plot result of non analytical-integral I have the following function: h = 1; c = 1; k = 1; B2 = (2*h*c^2)/(x^5 (Exp[(h*c)/(x*k*T)] - 1)); (someone can see that this integral is the Planck function). ... 3answers 336 views ### Points of Intersection How to numerically find points of intersection between pair of curves (Here,a circle and a parabola) ? Finding it a bit messy as, for a point on one curve, slope of the other is involved. ... 2answers 331 views ### Color Transfer from colored image into grayscale image At first I did this where image is a grayscale image and example is a colored image ... 1answer 110 views ### FindDistributionParameters and Hypothesis Testing Please excuse me if I am making any logical error in posting this question since I am not a math major. However, let me post my question. I am trying to fit multivariate parametric distribution to ... 1answer 85 views ### How to show that an expression is 0 if FullSimplify never finishes I have a huge expression. And I have "checked" numerically that it is 0 for real value variables. However, due to the size and structure of the expression FullSimplify seems to be having a hard time. ... 2answers 220 views ### Another weird plotting result I asked a question this morning here, which has been resolved. However, I got another problem. I want to add some lines to the graph, which turns out glitched. The code is as follows, ... 2answers 175 views ### How to get a multiple line plot from a list of lists Following this data input {{{2,4,6,8,9},{342432,435345,564564,56756,9945},{23,356,565,304,564},{3,67,76,44,7}}} The array is the data of three lines. The first ... 2answers 213 views ### Find sublists of a list that match some conditions Question2:: ... 1answer 159 views ### Error when attempting to save Notebook. Cause and solution? I am experiencing an error attempting to save a modified Notebook in Mathematica 10 under Windows. The error I get is: ... 4answers 632 views ### How to add PlotLegends in a Show function? I have multiple ListPlot in a Show where i want to add PlotLegends, but adding the ... 2answers 344 views ### Create a matrix of matrices using Band and ArrayFlatten [duplicate] I can easily write a simple Band matrix using: SparseArray[{Band[{2, 1}] -> a}, {Dim, Dim}] where a is a number. Now, I ... 2answers 148 views ### Use only exponents (no radicals) in output expressions Radical symbols ($\sqrt{\,\,\,\,}) are the devil. Is there any way to get mathematica to never use them, and instead express everything as an exponential? i.e. I want ... 2answers 164 views ### Animation of moving rectangles in 2D from data file I am not very familiar with mathematica but I know the basics so I thought I give it a try. For a project I have to animate rectangles moving around in 2D (later also 3D). The data come from a C ... 2answers 154 views ### How can I remove edges from my DiscretePlot? By default, DiscretePlot displays "edges" along the sides and, prominently, align the top when ExtentSize -> Full is set. For ... 1answer 66 views ### How can I automatically name files being exported based on input parameters I have Mathematica notebook that performs some operation say a=2 b=3 c=5 d=4 how do I set the output file after evaluation to be named using the values ... 1answer 187 views ### Wrapping at evaluation for inline cell I've been playing with inline evaluation and I've came to the conclusion that it's most convenient to put the Dynamic@ inside the inline cell, so I've started to ... 1answer 326 views ### Prove (or check) an expression is positive given constraints on variables? I'm trying to figure out whether an expression is always positive given positive parameters. When the expression is complicated, I can't do this by eye. Is there any way to make Mathematica prove ... 2answers 230 views ### Plotting a section of an hemisphere I'm writing a little package in Mathematica for geology where a particular stone may be approximated as an hemisphere. Anyway this is a rough estimation because a real hemisphere has its height as ... 1answer 199 views ### Order of symbols in Graphics labels Do you have any idea how to force an order of Greek letter in the graphics? When I type in AxesLabel -> {Cost, Δ OverBar[π]} the order is π Δ. How can I ... 3answers 169 views ### Join matrix based on conditions Given the following matrix: ... 1answer 329 views ### Typesetting - entering derivative in traditional form I am trying to work out how I enter a differential in standard notation? I am familiar with using D, but everything I have tried to enter a differential has failed. ... 1answer 304 views ### Selecting every last element of a nested list I couldn't find a similar question so I decided to ask this one. I have a nested list with many sublists of equal length. To make things easier let's say it's like that: ... 1answer 162 views ### Show contour area as tooltip? I have contour plots, such as plot = ContourPlot[Sqrt[(x - 2)^2 + (y - 2)^2 - 5], {x, -15, 15}, {y, -15, 15}, Contours -> {4}] /. _Polygon -> Sequence[] I ... 1answer 168 views ### Using DeleteCases with multiple AstronomicalData properties I am attempting to use AstronomicalData and DeleteCases together to remove invalid cases of two properties while listing the ... 2answers 162 views ### How to exclude numbers in a series and still plot the graph? [duplicate] I want to plot this:\displaystyle\sum_{n=-{10}\atop n\ne \pm 1}^{10} \dfrac {4i(-1)^{n}n}{(n^2 - 1)^2}e^{inx}$but have no idea how I can exclude the cases for when$ n = \pm 1 \$. I don't wish to ...
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I would like to display the following header on of each page of an exported pdf specificTitle XXX XXX should be the ...
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### What are the limits of the Prime-functions? [duplicate]

Will Prime and PrimePi test up to 3 * 10^12? Where can I find the limits for these funtions? ...
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### FrameLabel and OverTilde

What is the problem with this expression inside ListPrint? OverTilde generates here a mess: ...
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### Lossless TIFF or PNG export

I'd like to export an output from MatrixPlot[], however, the output file size seems to depend on my specification of the ImageSize -> {..., ...}. How might I export a TIFF with all of the data in the ...
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### Unresolved differential equation [closed]

Why can't Mathematica solve this equation as stated? ...
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### Exporting HTML code to file.html

I've got a problem with re-saving html code. Lets create html file: ...
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### Can you form a list with elements which are terms from an equation?

Is there a command that takes an equation as an input and creates an output with a list of terms in the original equation? Something like: ...
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### Is it possible to treat starting values as variables?

I have a problem where I am using FindRoot a gazillion times over a grid of parameters. I need to allow the starting values to vary a bit with the parameters to get it to converge. Here is a simple ...
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### The proper way to write the input for a certain series

Mathematica tells the series below doesn't converge. I think it converges. What would the proper way to write things be as an input? ...
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### Passing an iterator [duplicate]

The code Table[i, {i, 5}] produces the output {1, 2, 3, 4, 5} whereas the code ...
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### NDSolve two PDE plus one ODE, together

I have a couple of PDE (time and space/length) that are correctly managed by NDSolve, but to which I’m adding an ODE on which the acc “accumulates”, through time, a ...
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### Plotting a large number of data points

I would like to know how to plot when I have a large number of points (arround 600) in a specific format: ...
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### How to change the Integer to a special form in an expression?

I have an expression. I want to change all the Integers to a new form. The rule is, x_Integer->x._f. But we should consider some special cases. For example, ...