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
0answers
38 views

How to convert a list of polynomials into a list of equations and plug into Contourplot?

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 ...
0
votes
0answers
56 views

Turning Latex into Mathematica code [duplicate]

It is possible to get Mathematica code to Latex alright, but is it possible the other way too, i.e., auto translate Latex back to Mathematica code? If available it could help many users active both ...
3
votes
3answers
136 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: ...
4
votes
5answers
104 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 ...
3
votes
2answers
130 views

What's real analogue for FromDigits?

FromDigits only works for integer strings. What's its real-number analogue?
3
votes
1answer
69 views

Converting path list to the nested list

I'm trying to convert the plain path list to the nested tree list like the following codes. ...
0
votes
2answers
103 views

Decimal-to-ASCII conversion

I have to write a program that converts a number (decimal notation) to an ASCII string. For example, x = 26728 (or 0x6868) and the string is "hh". I wrote this, but it seems that it is not the ...
1
vote
1answer
122 views

ConversionRules and style inheritance

Take the LaTeX-Article stylesheet stylesheet = FileNameJoin[{"Article","LaTeX-Article.nb"}]; Compare these outputs ...
1
vote
1answer
101 views

Conversion of Sine to Cosine

I'm solving equations with many Cosines and Sines. And I want to convert all the Sines to Cosines using trigonometric formulas such as cos(x)=sin(x+pi/2). How can I do this?
2
votes
2answers
57 views

How do I extract the value of a 'Style'?

I have a Style displaying an underlying Real value. For example I might have ...
3
votes
0answers
52 views

How to replicate v9's color conversion to LAB under v10

Mathematica 10(.0.0) appears to use a different flavor of the LAB color space, but I would like to emulate the same behavior observed in version 9(.0.0). v9 ...
10
votes
4answers
334 views

Built-in way to convert Integer to Ordinal String

Is there a built-in way to convert an integer into its ordinal string representation (as per this page). That is, something akin to ...
0
votes
0answers
36 views

Strange style conversion indicator appeared when type “a Pre”

I got the following strange style conversion indicator when I was typing a Pre(character a and ...
4
votes
2answers
303 views

Conversion of 3D plot to 2D Contour Plot

Is it possible for Mathematica to convert a 3D plot into a 2D contour plot without having to recompute the values for each point? I realize that looking directly down at the 3D plot will be similar to ...
6
votes
3answers
184 views

Incompatibility of Row and TeXForm

Bug introduced in 9.0. persist as of 10.0.2 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 ...
1
vote
1answer
164 views

Simplify results further

I have an extremely long result in polynomial form following some matrix operations. However, given the symmetry of the problem, I can safely say that the solution will reduce much further than is ...
6
votes
6answers
2k views

Convert a string into a list of numbers

I got the following problem I don't know how to solve or if it's at all possible to solve(I'm quite new to Mathematica and don't have an IT background, so please explain slowly if possible:)) I'm ...
0
votes
1answer
566 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 ...
0
votes
1answer
142 views

What is the formula's are used to convert to meters/second? [closed]

Using mathematica, what are the formula's/methods available to convert the following per hour intervals into meters per second (using meters/s from light speed): Kilometer Mile (US) Mile (Nautical) ...
2
votes
1answer
126 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
votes
3answers
227 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 ...
8
votes
2answers
229 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). ...
1
vote
2answers
350 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 ...
6
votes
2answers
2k 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
0answers
86 views

Hypergeom to Bessel

Is there any way to get Bessel function equivalent to a Hypergeom function. Would it be possible in general ? From maple integration (As discussed in Answer ID 37931), the result of a symbolic ...
0
votes
3answers
199 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
62 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
158 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
vote
2answers
83 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 ...
3
votes
3answers
1k views

Convert Integer to Real

Is there a preferred way of converting an Integer to a Real? What I'm using at the moment is ...
3
votes
2answers
307 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 ...
1
vote
0answers
72 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 ...
7
votes
2answers
253 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? ...
7
votes
3answers
2k 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
142 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 ...
0
votes
2answers
145 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
235 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
141 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 ...
5
votes
1answer
1k 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 ...
9
votes
1answer
223 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
votes
0answers
160 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: ...
6
votes
1answer
350 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
214 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, ...
7
votes
1answer
689 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 ...
11
votes
1answer
664 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 ...
11
votes
2answers
549 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 ...
15
votes
3answers
688 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 ...
17
votes
8answers
3k 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
326 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 ...