Questions tagged [conversion]

Questions on changing Mathematica expressions of one type or format to another, for example date formats, Boxes and other typesetting representations, or different units of measurements.

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2
votes
1answer
2k views

How to convert sine wave into square wave? (analog to digital signal)

I've got this plot with two sine waves and what I need is follow: Amplitude values can diverge from time to time like here min 100 and max 700 but another time it's 300 600. I guess I will not be ...
2
votes
0answers
371 views

Read in Bézier curve from SVG file

I am trying to do some calculation of some SVG file. After reading in with Import["filename", "XML"] and some easy operation, I can get the string of the Bézier ...
7
votes
3answers
232 views

Convert frequency counts to long notation in Mathematica

I have a series of frequencies of values, e.g. 5 times 1, 10 times 2 and 5 times 3, as in list={{1,5},{2,10},{3,5}} and I would like to convert this to long ...
8
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3answers
260 views

Graphics in Notebook Different from Graphics Expression?

Consider the expression TreeForm[a+b^2+c^3+d] which displays as This is a nice Graphics object, as I can prove by typing ...
10
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2answers
383 views

Working with Java hashmaps from Mathematica

I'm using J/Link to access data from an external Java program. The data are represented as a ConcurrentHashMap (see the official specification here). ...
7
votes
1answer
991 views

Visualize a tree structure using TreeGraph

I have a code that generates a tree of graphics objects. The structure can be visualized like this, with each Rule constituting a parent child relationship: ...
1
vote
2answers
1k views

Converting expression into string without evaluating it

How can one convert a Mathematica expression into a string without the expression being evaluated first? I tried using Hold, but it returns ...
4
votes
2answers
1k views

How do I convert imported STL files to 3D images?

After importing a 3D image in STL format, my possibilities in regard to "3D Volumetric Image Processing" seem rather limited. All examples are given with TIFF files. Is there a way to convert from STL ...
7
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2answers
3k views

How to convert a string of number into real numbers without precision loss

I searched and did not find similar answers which can resolve the 'no precision loss' issue. A sample string is: ...
0
votes
3answers
233 views

Conversion of binary matrix of mlf into multilinear function, any ready function for this?

I convert here only one term $x_1x_3x_7$ from the binary matrix by first getting the reversed binary 1010001 and then miggling with the data. I know I could convert the columns into binaries and then ...
1
vote
2answers
69 views

How to get monomials multiplied by each other?

Suppose Subscript[x, #] & /@ {1, 3, 7} that returns {x_1,x_3,x_7}. Now how can I get ...
0
votes
1answer
236 views

Old notebook (Version 3) not opening in version 9

I have some old notebook files in version 3 format from the book "Mathematica for Physicists". These files are blank except for the chapter header when opened in Mathematica 9. I have similar ...
1
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2answers
91 views

Command to change binary mlf terms into Subscripted mlf terms?

I express multilinear functions in the following format. Is there any ready command to convert them to multilinear functions easily? Input ...
5
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4answers
7k views

Convert Integer to Real [duplicate]

Is there a preferred way of converting an Integer to a Real? What I'm using at the moment is ...
5
votes
3answers
535 views

Transform Piecewise[] into sum of indicators

I'm interested in transforming a piecewise defined function into a sum of indicator functions, ultimately with the aim to be better able to integrate them. As an example I would like to transform the ...
18
votes
4answers
1k views

How to convert Graphics3D object into an Image3D object?

How does one convert a Graphics3D object into an Image3D object? E.g., start with ...
4
votes
4answers
921 views

Converting inequalities to intervals

I have an inequality, ie: 1.57116 < g < 14.1405 There will be a large set of similar inequalities, and I want to find the intersection of them all. I figured it would be easier to convert the ...
2
votes
0answers
83 views

Will aliasing the Quantity and UnitConvert functions to “in” and “to” create problems?

It seems that there is a lot of interest in enhancing the use of units in Mathematica; various solutions in the name of brevity, correctness, and general utility have been demonstrated. I've begun ...
8
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2answers
312 views

Programatically adding/retaining comments within a nested list

Is it possible to convert the following list of strings to computable numbers with the comments preserved? ...
13
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2answers
11k views

Converting Mathematica to $\LaTeX$

Is there a Mathematica-to-$\LaTeX$ converter, so that I can place Mathematica code, including things like A // MatrixForm, just as they are in the console straight ...
1
vote
3answers
174 views

How to convert a spaceless data into tab delimited

I have a data set in form of:(this is just an example) 1324501020 3241030205 4332020134 the data are stored in a text file (e.g. data.txt) but I need to convert ...
1
vote
2answers
218 views

How to get rid of trailing string after using Convert?

Convert[0.05263, Percent] /. Percent -> "%" I would like to remove the trailing "%" but if I put Percent->"" it concatenates a literal empty pair of quotes. ...
5
votes
2answers
602 views

How do I remove the subscript after calling BaseForm[]?

Say I want to convert some number $N$ to base $k$. Here, I might use the command BaseForm[N,k], e.g.,BaseForm[10,...
4
votes
5answers
169 views

Convert a list with three arguments {x0,x1, step} into an equidistant table?

How can I convert a list such as: a = {1, 2, 0.1} into sequence so that I can pass them into a function, e.g. I want to be able to do something like this ...
41
votes
2answers
8k views

The correct way to linearize colorspace before resizing, blurring etc

There was an interesting discussion on MathGroup dealing with the fact that image-processing functions in Mathematica (and many other software, including Adobe Photoshop) work with RGB, Grayscale etc. ...
7
votes
1answer
3k views

Combine multiple PDF files into one document

I have multiple single page PDFs I'd like to join together into a single file. (Obviously I mean the file format and not the probability distributions here!) I'm aware of free online services such as ...
7
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2answers
257 views

Why doesn't Normal[] work?

I have a polygon on which I'm applying a GeometricTransform and I want to get the coordinates of the transformed polygon. ...
9
votes
1answer
323 views

How can I convert the dates returned by FinancialData into decimal representation?

I'm trying to run a regression using Fit on the output of FinancialData["SPY", "Jan. 1, 2011"]. However, the dates returned ...
8
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0answers
213 views

TeXToBoxes and BoxesToTeX BoxRules options

A recent question has gotten me to look more into the tex conversion rules. Consider the following latex string: ...
7
votes
1answer
501 views

How to write aligned equations and export them HTML/TeX

This question is mainly about exporting to HTML/TeX. For those of you who do not know how to write aligned equations in Mathematica please see this answer. Lets assume that you modified your ...
3
votes
1answer
268 views

Inline cells and conversion rules

In the following link you can find the following about ConversionRules when exporting to HTML: specifies mappings from Mathematica cell styles to HTML elements, ...
10
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2answers
1k views

Creating and editing new stylesheets

I'm trying to create a stylesheet, but the process has become painful. I'm sure that this has to do something with resetting something in Mathematica everytime I make changes to the stylesheet. To ...
13
votes
1answer
958 views

Exporting numbered equations to HTML/TeX using conversion rules

This question is a follow up from this one. It may also be considered a duplicate since I have already asked this question in stackoverflow almost a year ago. For a background on using numbered ...
15
votes
2answers
1k views

Exporting notebook to HTML, using conversion rules

The idea is to export the whole notebook to HTML with all the math equations in latex form. In this way we can add the mathjax script and it will take care of the math. Suppose we have the following ...
16
votes
3answers
917 views

How to convert between various ItemSize/ImageSize units?

How can one convert between the implicit units used by Grid (ems and line height for horizontal and vertical dimensions) and printers points (in ...
30
votes
2answers
2k views

How do I extract the contents of a selected cell as plain text?

My aim is to extract the contents of an Input cells as plain text. Ideally I would like to be able to select one or more Input cells and press a button which would then extract the text from these ...
23
votes
7answers
7k views

How to express an integer number in English words?

How do I convert a number to a readable string? I would like to implement a function, inWords[], inWords[n_]:= ? which ...
7
votes
2answers
540 views

Revert FullForm-ed text to prettyprinted

Sometimes strings in a notebook/package file end up garbled due to some unknown/unintentional conversion of the expression/cell/notebook. I could not find a way to revert such unreadable text to its ...
48
votes
7answers
3k views

Character edge finding

The following line of code finds the edge of a character: ...