Questions tagged [string-manipulation]
Questions on the manipulation of String objects in Mathematica, and the functions used for these manipulations.
1,322 questions
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Shortest strings surrounded by other strings
This is probably trivial, but it has been quite a long time since I last used Shortest and now I can not figure out how to do the following properly.
Shortest ...
- 32.8k
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Finding position of corresponding parentheses in expression
Suppose we have an expression in InputForm as a string. The task is to find position of corresponding parentheses. For example parenthesis at position ...
- 32.8k
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How to parse a parenthesized arithmetic string into a minimal-parentheses symbolic expression?
I have arithmetic expressions given as strings with excessive parentheses, and I want to convert them into symbolic Mathematica expressions that retain their structure but are formatted with only the ...
- 5,782
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Fibonacci word generator and Density of Fibonacci subwords
Reference: arXiv:2505.00602
Reproduce Table I
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- 2,364
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What is the behavior of `FromRomanNumeral` on inputs with non-roman characters?
The documentation for the FromRomanNumeral function states that
any combination of valid digits is interpreted as an integer:
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- 1,720
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Displaying a string on fixed-width lines
Is it possible to format/style a string/text so that it is displayed in lines of fixed character length like on image without converting it to list of characters?
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- 32.8k
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How to delete line breaks in imported data
I am having a lot of issues trying to import data into mathematica and then clean the data so that mathematica recognises it. The data is a set of permutations, which I would like to express as ...
- 997
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How to set to 0 all terms in a matrix which contain a minus, revisited
The previous question How to set to 0 all terms in a matrix which contain a minus seems to have a wrong answer. For the matrix
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- 2,380
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Converting variable value to a string [duplicate]
I can run this with no problem:
Import[NotebookDirectory[] <> "a10.mx"];
Instead of that, I want to describe 10 with a variable as ...
- 95
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How to parse out a word's position in a data set [closed]
I'm trying to find better ways to import data. My data set is a CSV that contains a parameters at the end of the file. For example in this two part list I want to find the position at which the word &...
- 41
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How to speed up ToString[#,TeXForm]&?
Try the following code to convert the expression to LaTeX code
f = Expand[(x/2 + y/3 + z/5 + 1/7)^20];
str = ToString[f,TeXForm]; // AbsoluteTiming
It took about 1 ...
- 877
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Match two lists based on same elements
I have two large lists:
list1 = {{a,v},{a,h},{b,v},{b,k},{c,t},{c,r},{d,r}};
list2 = {{v,dc},{v,rt},{h,kl},{h,oi},{h,po},{k,ö},{k,dc},{t,re},{r,qw},{r,ay},{r,ül}};
...
- 959
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How to get the desired LLM response in string robustly with and without using regular expression rules
I am trying to query a large language model from VS code using WolframEngine.
However, ImportSting with JSON options does not ...
- 3,079
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How to separate a filename from its extension [closed]
Is there a function that separates a filename from the extension? E.g.
MyNotebook.nb
would become
...
- 7,281
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NYT Spelling Bee puzzle
I've written some code that provides answers to the daily NYT Spelling Bee puzzles which ask you to find words that can be constructed from 7 given letters, one of which must be present in each word:
<...
- 5,107