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TeXForm

Status: Experimental

present and registered, but lightly documented and not yet covered by dedicated tests.

Description

TeXForm[expr]
    prints as a TeX version of expr.
TeXForm produces AMS-LaTeX-compatible TeX output.
When an input evaluates to TeXForm[expr], TeXForm does not appear in the output.
TeXForm translates standard mathematical functions and operations.
Following standard mathematical conventions, single-character symbol names are given in italic font, while multiple character names are given in roman font.

Examples

No verified examples yet for this function.

Implementation notes

Algorithm. TeXForm[expr] is a held wrapper: builtin_texform returns NULL, and the actual rendering is triggered by print_standard in src/print.c, which on seeing the TeXForm head dispatches to the recursive print_tex renderer. print_tex emits AMS-LaTeX, reusing the same precedence levels as get_expr_prec so parentheses are inserted consistently with the ordinary printer. Numbers go through print_tex_number (integers/bigints verbatim, reals via %g with a trailing dot, MPFR at precision-derived digit counts). Symbols go through print_tex_symbol, which maps named constants (Pi -> \pi, Infinity -> \infty, EulerGamma -> \gamma, Degree -> {}^{\circ}, booleans to \text{...}, etc.), emits single-character names bare (italicised by math mode) and wraps multi-character names in \text{...}. Trig and hyperbolic heads are mapped to \sin, \cosh, … (with inverse variants rendered as \sin^{-1} style) via the tex_trig_lookup table; structural forms (Power, Times, fractions, Sqrt, lists/matrices, SeriesData) have dedicated emitters. The output is printed directly to stdout rather than returned as a string expression.

Attributes: Protected.

Implementation status

Experimental — present and registered, but lightly documented and not yet covered by dedicated tests.

References

Notes & additional examples

Worked examples

In[1]:= TeXForm[x^2 + 1]
Out[1]= 1+x^{2}

In[2]:= TeXForm[1/2]
Out[2]= \frac{1}{2}

In[3]:= TeXForm[Sqrt[x]/y]
Out[3]= \frac{\sqrt{x}}{y}

In[1]:= TeXForm[Integrate[1/(1 + x^2), x]]
Out[1]= \tan ^{-1}(x)

In[1]:= TeXForm[Gamma[1/2]]
Out[1]= \sqrt{\pi }

In[1]:= TeXForm[D[Tan[x], x]]
Out[1]= \sec(x)^{2}

Notes

TeXForm renders an expression as a TeX/LaTeX string, mapping fractions to \frac, roots to \sqrt, and superscripts to ^{...}. Paste the output directly into a math environment.