# All Questions

184 views

### Button doesn't evaluate variable containing Module

I have a huge set of code to accomplish a data transformation. I have saved this set of code as eg: ...
356 views

### What is the most efficient way to add zeros to end of a number?

Beside *10^n, is there a faster way to add thousands of zeros to end of a number? Updated Timings: ...
204 views

### How can I create a custom control which evaluates to a list of values or replacements?

I have a set of variables which are used in various places in my calculations (solving a system, initial conditions, etc.). In order to make this easier to deal with, I want to make a control-like ...
256 views

### Use single ListPlot for multiple sets of data (on separate graphs)

This is the code I have working for a single set of data. Is there a way I can structure this to have multiple sets of data? ...
177 views

### How to distribute a generic function of two arguments (without evaluating the arguments)

I guess there is an easy way to do this, but I can't seem to figure it out. What I would like to do is to distribute a generic (i.e. without specifying what this function really does) binary function. ...
503 views

### Add two Histograms to calculate summed Mean and StandardDeviation

As a follow up to this question: Calculate mean and standard deviation from ImageHistogram I would like to add two histograms before calculating the mean and StDev. I would like to sum the numbers, ...
2k views

### Calculate mean and standard deviation from ImageHistogram

I am doing my PhD in Clinical Neuropsychology; I had someone helping me analyse images (.jpg pictures) in Mathematica, but it turns out this person made some really bad decisions, and well, now I have ...
440 views

### Nonsense Data with Wolfram Alpha + Mathematica?

I am trying to learn how to interface with WolframAlpha. When I try using the Mathematica interface I get nonsensical data. I don't know if this is a bug or if I'm doing it wrong. My goal is to ...
2k views

### How to convert equation to vector (matrix) form?

How can I convert expression a1*u1+a2*u2+a3*u3 to the vector form of dot product A.U, where ...
591 views

### How to store value in a For loop

I am using two For loops. When the inner loop finishes, I don't want to print but I want to store the result from the inner loop in some variable so that I can call ...
793 views

228 views

### How can I change a list to a sequence without destroying nested list

I defined a function f like f[x___, y_] := something; and if xs and ...
91 views

### How to draw a normalized tangent arrow [closed]

I want to draw a normalized tangent arrow, so I use the Normalize command as follows: ...
135 views

### Fourier Analysis: How to get rid of a discontinuity

When I compute the phase error of a spatial series data using Fourier analysis in Mathematica there's a discontinuity @ parameter ...
74 views

### how to write TableForm expression into file?

Now I have a list stored in data as follows data = {{"Ca", 1, 1, 1}, {"Ca", 2, 2, 2}, {"Ca", 3, 3, 3}} the ...
72 views

### InputAliases and SelectionPlaceholder issue in V10

Let's create an example and do the test: ...
95 views

### Aborts and beeps without error warning

I have a piece of code that generates a figure, performing a calculation to generate each pixel. At a certain resolution it runs fine, but after a high enough resolution it fails. Mathematica beeps ...
129 views

### Incompatibility of Row and TeXForm

Bug introduced in 9.0 Update: Since no one has been able to give a reason for this change in behavior or provide a solution I am tagging this as a bug. Please report it to Wolfram Support if this ...
58 views

### Set number of columns in text-based interface

Is it possible to set the number of columns in Mathematica's text-based interface? Or disable word wrapping in the text-based interface ? Specifically, my concern is output from ...
195 views

### Findfit doesn't give the good fit; Changing the starting values will not change the results

I have some complex data: ...
229 views

### Triangular numbers boolean function

I read the new book by Paul Wellin Programming in Mathematica. There is an exercise about triangular numbers. (The n-th triangular number is defined as the sum of ...
138 views

### BarChart that lines up with dates in DateListPlot

I am trying to create a chart similar to the view offered by TradingChart, but with custom data not relating to finance. ...
239 views

### Using a complicated function as color function

I have an ellipsoid with parametric equations lst = {10*Cos[u]*Sin[v], 3*Sin[u]*Sin[v], 2*Cos[v]}; I define a function ...