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Mathematics Import and Export Wolfram Language

Importing a Latex string gives an error no translation

Gregory Holba

Posted 1 year ago

I am new to Mathematica and would like to import a LaTeX string into a notebook. I have done the following and I have an error message as shown. Can anyone shed light on what I'm doing wrong please? mathExpression = ImportString[ "\alpha =& \left[\left(\frac{A^4-B^4}{16}\right) \textcolor{red}{-}\frac{B^2}{4}\left(\frac{A^2-B^2}{2}\right) \textcolor{red}{+}\left(\frac{A^2-B^2}{2}\right)\left(\frac{\ln B}{\ln C} \frac{A^2-B^2}{4} \right) \right.\\ \left. & \ -\left(\frac{A^2}{2}\left(\ln A-\frac{1}{2}\right)-\frac{B^2}{2}\left(\ln B-\frac{1}{2}\right)\right)\left(\ \frac{A^2 - B^2}{4\ln C}\right)\right] \\" ],"LaTeX"] Error message : "No Wolfram language translation found"

I am new to Mathematica and would like to import a LaTeX string into a notebook. I have done the following and I have an error message as shown. Can anyone shed light on what I'm doing wrong please?

mathExpression = ImportString[ "\alpha =& \left[\left(\frac{A^4-B^4}{16}\right)
\textcolor{red}{-}\frac{B^2}{4}\left(\frac{A^2-B^2}{2}\right)
\textcolor{red}{+}\left(\frac{A^2-B^2}{2}\right)\left(\frac{\ln B}{\ln C} \frac{A^2-B^2}{4} \right) \right.\\ 
\left. & \ -\left(\frac{A^2}{2}\left(\ln A-\frac{1}{2}\right)-\frac{B^2}{2}\left(\ln B-\frac{1}{2}\right)\right)\left(\
\frac{A^2 - B^2}{4\ln C}\right)\right] \\" ],"LaTeX"]

Error message : "No Wolfram language translation found"

POSTED BY: Gregory Holba

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Gianluca Gorni

Gianluca Gorni, University of Udine

Posted 1 year ago

Your code does not parse. Try this: ImportString["\\begin{align} \\alpha =& \\left[\\left(\\frac{A^4-B^4}{16}\\right) \\mathrel{\\textcolor{red}{-}}\\frac{B^2}{4} \\left(\\frac{A^2-B^2}{2}\\right) \\textcolor{red}{+}\\left(\\frac{A^2-B^2}{2}\\right) \\left(\\frac{\\ln B}{\\ln C} \\frac{A^2-B^2}{4} \\right) \\right.\\\\ & \\left. \\ -\\left(\\frac{A^2}{2} \\left(\\ln A-\\frac{1}{2}\\right)-\\frac{B^2}{2} \\left(\\ln B-\\frac{1}{2}\\right)\\right) \\left(\\frac{A^2 - B^2}{4\\ln C}\\right)\\right] \\end{align}", "LaTeX"] I think in LaTeX you cannot insert an `&` inside a `\left \right` pair.

Your code does not parse. Try this:

ImportString["\\begin{align}
\\alpha =& \\left[\\left(\\frac{A^4-B^4}{16}\\right)
\\mathrel{\\textcolor{red}{-}}\\frac{B^2}{4}
\\left(\\frac{A^2-B^2}{2}\\right)
\\textcolor{red}{+}\\left(\\frac{A^2-B^2}{2}\\right)
\\left(\\frac{\\ln B}{\\ln C} 
\\frac{A^2-B^2}{4} \\right) \\right.\\\\ 
& \\left.  \\ -\\left(\\frac{A^2}{2}
\\left(\\ln A-\\frac{1}{2}\\right)-\\frac{B^2}{2}
\\left(\\ln B-\\frac{1}{2}\\right)\\right)
\\left(\\frac{A^2 - B^2}{4\\ln C}\\right)\\right]
\\end{align}", "LaTeX"]

I think in LaTeX you cannot insert an & inside a \left \right pair.

POSTED BY: Gianluca Gorni

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