# All Questions

58 views

### Is there a way to get BSplineFunction beyond MachinePrecision?

I have been using BSplineFunction (Mathematica 8) to generate a smooth representation of some data, which I might then do some further processing on. As I ...
95 views

### WholeCellGroupOpener and Hyperlinks

My problem is: I would like to activate WholeCellGroupOpener on a cell containing hyperlinks. But when I do that, the hyperlinks are no longer active. Is there a way to change the order of the two, so ...
811 views

### Epilog->Text placement on LogLogPlot

Hopefully this is a simple question. I'm trying to overlay some text on top of a LogLogPlot using Epilog and ...
97 views

### Making two lists which share part of its name, while its name is also an element of the list

I am stalled with the following problem: I want two lists, for example: name={1,2,3} and namec={{1,2,3},{x,y,z},name} The ...
34 views

### How can I convert a list to an expression? [duplicate]

For example, I have the following list: {x1,op1,x2,op2,x3,op3,...} And I would like to convert the list to the following expression: x1 op1 x2 op2 x3 op3 ...
199 views

### Inverse on a restricted domain

I have a function, whose domain is [0,1]. The function is f = Piecewise[{{Exp[-β * (-Log[#])^α], 0 < # <= 1}}, #]& with ...
307 views

### Ugly font rendering (ubuntu 12, overrides system settings)

Mathematica 9 on Ubuntu 12 renders fonts very poorly. Text is readable, but it makes it very hard to concentrate on programming. Since smoothing on Ubuntu on low DPI screens isn't very good either, ...
160 views

### Split a list of pairs at points with decreasing first element

I have a list in which the first index is mostly increasing, but dips sometimes. I need to split this list in two or more lists in this way: when the first element of a pair is smaller than the ...
233 views

### How to plot results of Dsolve

I could not figure out how to get a plot of the results of my coupled differential equations. I am sure that the equations are written correctly. I tried solving a basic Lotka Volterra set of ...
181 views

### Getting a usable expression tree

I need to get the expression tree for some expression. expr //TreeForm The above grabs the expression tree but it isn't in some sort of usable format. Just an ...
154 views

### ListDensityPlot controlling the number of colors

Is there a way to set the number of colors used in ListDensityPlot. I am using "Rainbow" as follows: ...
478 views

### Have I found a bug in Integrate?

The following command gives 0 in Mathematica 9.0.1. ...
137 views

### Is this integration error from a misuse of Mathematica or is it my poor math skills?

I have input this: Integrate[1, f[t]*Exp[(v/V)*t]] That is $\large\int 1*d(f(t)*e^{\frac{v}{V}*t})$ I expected this output: $\large f(t)*e^{\frac{v}{V}*t} + C$ ...
361 views

### Collatz Tool Box — any speed ups possible?

I have created a tool box for experimenting with the Collatz conjecture. Info here: Wolfram MathWorld and here: Wikipedia The patterns I have found allow us to make the conjecture jump through some ...
345 views

### How to export a table of complex numbers?

I'm having problems exporting a table of complex numbers. I have: ...
236 views

### Find root of a function defined as a Module

I have a simple module like BCdet[x_, y_] := Module[ {AuxMat}, AuxMat = Mat /. {f -> x, A -> y}; Det[AuxMat] ] where ...
508 views

### How can I suppress rotation of 3D graphics?

Given a 3D image built of a combination several Graphics3D objects, is it possible to suppress rotation of the displayed image by the mouse? To be specific, here ...
186 views

### Partitioning a data set of two-dimensional coordinates into subsets of coordinates underlying non-overlapping tiles of a bounding box

Image I have a list of coordinates of the form: ...
119 views

### How to keep the ctrl+shift+k help menu remain in display while typing?

In Mathematica 9, one can type ctrl+shift+k to display menu which has all the possible signatures/definitions for the function or command in question. One can ...
142 views

### Color Blend in BezierCurve

How can I color a BezierCurve from Red into Green just as ...
160 views

### Construct an infinte matrix with finite sub-matrices

How can I construct an infinite matrix with finite sub-matrices of the form A = (B0, 0, B1 0, B2, 0 0, 0, B3) where each Bi is a rectangular or a ...
286 views

### What are all the named Mathematica styles?

This question came to mind because of this answer to a recent question. Under Style, the Mathematica Documentation Center says the following about named styles. A few common named styles ...
116 views

### ToBoxes Respect Spaces Code

Is there a way to force either ToBoxes or MakeBoxes to respect the spacing that occurs in the code? For example is there a way ...
300 views

### Unexpected behavior: CForm converts rationals to floating numbers

One line question: How to make CForm[1/2] generate 1/2 instead of 0.5? (Thanks Nasser's ...
205 views

### How to change the LabelStyle only for one axis?

I want to modify the style of just one axis, but I'm stuck with something like Plot[x^2, {x, 0, 3}, LabelStyle -> Red] which of course modifies both axes. How ...
124 views

### Spelling dictionary corrupted

I have a problem with the Check Spelling in Mathematica, that I quite don't understand: If I try to use the Check Spelling on any notebook, the check just stop before the first word and in the field ...
163 views

### A question about derivatives (cubics)

Given an equation: f(z) = a (x + I y)^3 + b (x + I y)^2 + c (x + i y) + d Which can be re-written as: ...
170 views

### plotting hypergeometric functions

Does anyone know why a plot of a hypergeometric function turns out differently in Mathematica than in Maple? The function I'm plotting between x=-30 and +30 is: ...
113 views

### Style changes between controls and graphics

In the following Manipulate, the style (font?) of the a changes between when it is a control label and when it is a label in the graphics. Is there a way to make ...
573 views

### how to change the distance between tick mark and tick label

On similar lines as Is there an option to change the space/distance between tick labels and axes labels for plots? but I would like to reduce the distance between the tick mark and the tick label that ...
190 views

### Passing list of options to Plot

I'm looking for a way to create a variable that I can use to hold all of the graphics directives for, say, a plot command. For example, I have 8 plots with variations on the following: ...
89 views

### How do I save the last graphical output of Animate so as to make it the background for the next Animate?

I am making an instructional program in which a random number appears and moves across and down into the appropriate bin, landing on top of the existing stack. Then another number appears, repeating ...
247 views

### Convert a number to a string to use in plot axes label, but keep the exponent

This seems to be a simple, but useful question. I am plotting a basic function: ...
112 views

### CDF with numerous independent manipulate objects

I have been working on my senior project that involves the creation of a CDF with multiple Manipulateexpressions. I need to protect my code so I have been trying to ...
559 views

### Importing specific elements from JSON

I'm having trouble importing JSON in the way I expect, based on my reading of the documentation. The particular issue I'm having is with importing a specific element, or list of elements. From the ...
260 views

Snake Games ...
144 views

### Recurrences of lists

Assume we have a multi-dimensional recurrence, e.g. \qquad\begin{align*} a_1 &= (1,2) \\ a_n &= (1,2) + a_{n-1} \quad, n>1 \end{align*} with the easy solution $a_n = (n,2n)$. How ...
203 views

### Why doesn't FrameTicks work with Histogram?

An example: Histogram[RandomVariate[NormalDistribution[], 1000], PlotRangePadding -> 0, Frame -> True, FrameTicks -> {{{0, 0}}, {}}] I expected this ...
101 views

### Apply N only outside a certain function

1 + f[1] // N gives 1. + f[1.] I don't want the argument of f evaluated by N; I ...
231 views

### How Can I Transform a Colored Image into Pre-defined Matrix?

I am new to Mathematica and I would like to use it to postprocess some of the experimental data I measure. I would like to visualize voltage measurements over a non-uniformly segmented plate. I would ...
79 views

### Ordering under assumptions

I have a three-element list which contains inverses of a function u, like so: ...
100 views

### How to define Similarity Rules?

I have a question about Mathematica's SimilarityRules defining (for e.g. SequenceAlignment function). So help centre clearly ...
132 views

### Is it possible to frame a group of cells?

Is it possible to put a frame around a group of cells (e.g. a numbered list)? My problem is, that if I select the cell group and then click frame on the writing assistant, then it puts a frame around ...
260 views

### Difficulty with computing a limit

I meet some difficulties when trying to compute this limit, ...
61 views

### Connect to a MS Access database (*.accdb) [duplicate]

The JDBC Connections section of the help file http://reference.wolfram.com/mathematica/DatabaseLink/tutorial/DatabaseConnections.html gives me the impression that I can connect to a MS Access Database ...
814 views

### Generating an “average curve” from a dense set of “semicontinuous curves” which clear trends

This question is related to a previous one of mine: Partitioning a superset of coordinates into subsets that generate continuous curves, where the challenge was to partition a data set into two ...
117 views

### NotebookWrite undo

Is there way to make NotebookWrites undooable? For example let's say I open a new notebook and then run. ...
309 views

### Unexpected Setter Bar Behavior when Manipulate Nested in Dynamic Module

Consider this code: DynamicModule[{x, y}, x[t_] := t^2 + 5; y[t_] := t^3 + 5; Manipulate[Plot[fcn[t], {t, -5, 5}], {fcn, {x -> "Square", y -> "Cubic"}}]] ...