# 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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### Boxes in EPS output after PDF -> EPS conversion in Mathematica 11

When I used Mathematica 9, I used to Export to .eps using a .pdf Export, followed by import like the following: ...
5k views

How to convert the $\LaTeX$ format to Mathematica input? For example, if I have a formula: $$\sum_{m_{i}=0}^M\sum_{n_{j}=0}^N \frac{(z_{i}/2)^{m_{i}}(z_{j}/2)^{n_{j}}}{m!n!}$$ in terms of $\... 1answer 323 views ### Integer to ordinal number string (words only) I am trying to create a function that does: f (* "first" *) f (* "twentyseventh" *) f (* "fiftieth *) There need not be a hyphen or space in ... 3answers 296 views ### How to convert numbers to currency values? I am trying to create a way to convert some values of numbers into currency (dollars). The example I display below takes in three random numbers between -4 and 4, and rounds them to the second decimal ... 1answer 317 views ### Conversion between Piecewise[] and Abs[] representations [duplicate] Is there a utility in Mathematica that can convert between two representations of an expression? The simplest example I can think of is Abs[x] Which I'd like to ... 0answers 60 views ### Is there a substitute for the “Show” function to use within the Mathematica kernel? I needed to implement a function to convert an object from Graphics3D to Image3D, basically a 3D version of rasterisation (I need the geometry in a discretised form). I used the method suggested by R.... 1answer 165 views ### How to restore a Notebook saved as Package? A Notebook I was working on was saved as "Package" (with the extension ".m"). Upon opening this file, everything is unreadable. How do I convert this file back to ... 1answer 601 views ### Circle to Hexagon Conversion [closed] I have a set of circles defined by a Middlepoint and a radius e.g. Circle1: x = 10, y = 10, r = 3 Circle2: x = 15, y = 2, r = 10 etc... But I want to have them ... 1answer 738 views ### How to use an image as a number? How to define an image as a number? for instance I want to do something like this where but there is an error massage ... 3answers 1k views ### Display grayscale image as 3d plot How to build 3d plot of grayscale image where x,y - pixel coordinates, z - pixel intensity? I tried ListPlot3D[ImageData[image]], but ... 1answer 162 views ### Problem with conversion of UI controllers' boxes to expressions Bug introduced in V10 and partially fixed in V11.1.1 TLDR Various of expressions which have fancy typeset form or are designed as UI elements won't survive ... 1answer 122 views ### What types of string patterns can't be translated into regexes and hence do not work? In a comment to related question Oleksandr R. made an interesting remark: ... because string patterns are converted into regular expressions and matched using PCRE, they are subject to some ... 1answer 160 views ### Convert expression to string in a reversible manner What is the best way to convert an expression to a string in a reversible manner? I need a toStr function so that it is always true that ... 2answers 434 views ### How to copy formatted numbers as MathML without quotation marks? I have the following code: a = 6.08717*10^6; b = a/3; c = a*1.5; d = a^2; matrix={{a, b, c, d},{b, c, d, a},{c, d, a, b},{d, a, b, c}}; matrix // EngineeringForm ... 2answers 174 views ### How to open and explore the codes of the system Palettes files The built in Palettes of Mathematica are simply .nb files which can be found in the following place: ... 2answers 282 views ### How can I re-create the original Graph object from Graphics object into which that Graph was converted previously? We can convert a Graph into Graphics very easily like it is shown in this answer. My question is: how to convert a ... 1answer 346 views ### How to convert arbitrary raw boxes directly into String? This question is motivated by the recent question about searching inside of the NB files. According to the Documentation, ToString expects a high-level WL ... 1answer 224 views ### How to get “one Cell - one line” code format inside of NB files? The PageWidth option controls the way the Cell's content is displayed, not the manner it's written in a ... 2answers 509 views ### Understanding evaluation and typesetting Background So, one could be surprised by the fact that: Hold @ Grid[{{1, 2}}] (*or*) Hold @ Graphics @ Disk[] This issue and methods of prevention are ... 2answers 182 views ### Reading Cells or Boxes expression by expression Let's say we have a cell: (*newline*) (*newline*) Plot[ x, {x, 0, 1} ] (*newline*) Plot[x, {x, 0, 2}] How to read it expression by expression? So e.... 2answers 366 views ### How to convert Image3D object into Graphics3D object and vice versa? There are some rendering options (for example, Lighting) which are associated with the Graphics3D objects. I cannot apply these ... 2answers 593 views ### How convert old version 2.2 .ma files to .nb notebooks? I have a lot of old Mathematica version 2.2 .ma files that simply crash the current (10.4.1) version of Mathematica if I try to open them. Is there some way to ... 2answers 238 views ### ToExpression and ToBoxes aren't inverses of each other? Applying ToExpression and ToBoxes repeatedly to Hold[1/1] gives many ... 1answer 343 views ### Can one prevent$\TeX$conversion from changing form of expressions? This is similar to my previous question Can one prevent operators like Factor or Apart from changing full form of some algebraic expressions? but concerns$\TeX$and I cannot figure out whether I ... 1answer 109 views ###$CellContext issue while trying to export the current output of a Manipulate

Having just read this question Getting variables out of Dynamic Modules after restoring the program and the Kuba's answer I'm trying to optimize my workflow. I'm writing a Mathematica notebook to ...
321 views

### Can Mathematica convert a RegularExpression into a StringExpression or vice-versa?

I know that Mathematica can perform string comparison using either StringExpression or RegularExpression. Although regular ...
83 views

### An issue regarding the use of CopyToClipboard with dynamic content

Please, consider the following code: ...
230 views

### Arrows from GraphicsComplex not converted to Normal form correctly

Bug introduced in 7.0 or earlier and persisting through 12.1 Show @ Graph[{1 -> 2, 2 -> 3}, Frame -> True] Normal @ % Is this a pure bug, or have I ...
222 views

### How can DateObject handle calender weeks

I have dates given for a TimeLinePlot. These dates are in {year,week} format. DateObject ...
274 views

### Wolfram Data Framework specification?

Motivated by a recent question on the meaning of all sorts of W* acronyms, I would like to get more information about the Wolfram Data Framework (WDF). On its web page http://www.wolfram.com/data-...
145 views

### Custom rules for expressions in export to HTML(Fragment)

ExportString[Grid[{{a, b}}], "HTMLFragment"] ...
393 views

### Convert large KML coordinate datasets to UTM [closed]

I was wondering if there are ways to convert massive amounts of KML coordinates into UTM coordinates using Mathematica. Other programs would also be acceptable. Thanks. I have the KML file from ...
342 views

### convert MeijerG to form Standard Functions in Mathematica

I'd like to convert MeijerG[{{}, {1., 1.}}, {{0., 0., 4.}, {}}, -1. T λ] to its Standard Functions (For example Bessel function or ...). Any suggestion?
330 views

### Looking for PostScriptForm or ForthForm to print expressions as RPN code

Mathematica has very useful functions CForm and FortranForm. I want the same for a different language: ...
137 views

### Electromagnetism units conversion in Mathematica 10 (possible bug)

Is this a bug in Mathematica 10? Why can't I convert Amps/m to Gauss? ...
6k views

### Why Base64 ends with a newline? (\n)

Why everything converted to Base64 has a newline at the end? It isn't one of base characters, is it? ...
94 views

### Whitespace is lost during MathML -> XMLElement conversion

ImportString["<mtext> </mtext>", {"MathML", "XMLElement"} ] XMLElement["mtext",{},{}] while I'd expect: ...
113 views

### Cell ► Convert To ► Bitmap: FrontEndToken for a specific menu item?

I've seen good discussions about the full list of FrontEndTokens. But I could not figure out how to find a specific ...
441 views

### Export Mathematica to $\LaTeX$ properly

I am simply trying to convert an existing sample in Mathematica to $\LaTeX$. For example, if I open a new Mathematica notebook using styled templates such as Journal article and save it as $\TeX$. ...
479 views

### How to extract something from DelaunayMesh and similar family of functions

I was looking at this question here and I tried the suggested idea by Anton Antonov to use DelaunayMesh It will look like this: ...
254 views

### A bug in Rasterize and Graphics: diagonal line is under-diagonal

I plot a straight diagonal line and then simply rasterize it. Consider what happens (Mathematica 8.0.4, 10.2, 11.1.1 and 12.0 on Windows 7 x64): ...
113 views

### FromDigits gives “not a list of digits” error for integer string in StringExpression rule of StringCases

I have large StringExpression that is used in StringCases. Some of the parts being pulled out are integer strings. These pull ...
776 views

### Does Mathematica have an equivalent of Python's float.as_integer_ratio?

The Python programming language has a float.as_integer_ratio(x) function which exactly converts an IEEE 754 floating-point number into a numerator/denominator pair ...
47 views

### Possible bug of Exporting as HTMLFragment at Linux

This is the result of Mathematica 10.0.2 of Linux Version. There are two style inside one tag, and this fragment cannot be Imported as XML by Mathematica. This is the result of Mathematica 10.1 of ...
77 views

### How to convert a list of polynomials into a list of equations and plug into Contourplot? [duplicate]

Given a list q of polynomials (output of GroebnerBasis) in two variables I want to transform the list into a list of equations and plug it into CountourPlot. For ...
559 views

### Converting between AbsoluteTime and Unix time

By trial and error, I've found that the following gives the current Unix time: AbsoluteTime[] - UPOCH where UPOCH can be defined in any of the following ways: <...
322 views

### How can I convert a Piecewise into a nested If?

For later conversion into a programming language where if is the only conditional construct, I would like to convert a Piecewise ...
246 views

### What's real analogue for FromDigits?

FromDigits only works for integer strings. What's its real-number analogue?