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0.9.6 (11/27/2022)

Bug fixes

• Fixes swapped wedge and vee symbols (#55, credit to @ebolove)

0.9.5 (09/10/2022)

Bug fixes

• Round brakets after exponent render correctly (fixes #49)
• \cap now renders correctly (fixes #52)
• Escaped and non-escaped square brackets now render correctly, including with exponents (fixes #48)

0.9.4 (01/03/2022)

Bug fixes

• Fixes bug where certain commands would fail outside of math mode (e.g. TeX(r"(\alpha + \beta)")) (fixes #45).
• Fixes edge case where TeX(r"($^{18}$ O)") (e.g. a free-standing superscript or subscript) would not render.

0.9.3 (02/02/2022)

Bug fixes

• Fix an edge case encountered with back-to-back spacing or certain types of commands (e.g. TeX(r"(a \,\, b)")) (fixes issue #40)
• Fix handling of compare operators (=, <, >, \ge, \le) (fixes issue #38)
• TeX("") returns expression('') (an empty expression of length 1) (fixes issue #40)

0.9.0 I01/20/2022)

New features

• Completely rewritten parser that is much more robust, produces valid plotmath expressions in more situations, and improved rendering by making use of more plotmath features.
• Added a vignette containing a browsable gallery of LaTeX commands supported. You can pull it up using vignette("supported-commands", package = "latex2exp").
• Added the following LaTeX commands and symbols:
  • \Upsilon and \varpi for Greek letter variants
  • \uparrow, \downarrow, \Uparrow, \Downarrow, \to
  • \euro for the euro character
  • \langle, \rangle for angle bracket (supported in R 4.1)
  • \lceil, \rceil, \lfloor, \rfloor for ceil/floor brackets
  • \| for double-pipe brackets (\norm{expr} is an alternative command for typesetting a vector norm).
  • Note that the angle, ceil, floor, pipe and double pipe brackets are not scalable delimiters, because of plotmath limitations.
  • \bra, \ket, \braket for representing vectors with the braket notation
  • \smiley, \diamond, \sharp, \eightnote, \twonotes, \sun, \venus, \mars, \Exclam, \dagger, \ddagger, \(up|down|right|left)triangle
• Improved the appearance of round parentheses. TeX(r"($\alpha(\beta)$)") now renders more similarly to how plotmath renders the expression alpha(beta).
• Improved the appearance of ,, ' and '' in math mode.
• Improved the appearance of \frac fractions. Now a small space is inserted after the fraction, so that multiple fractions are separated.
• Added a test suite covering a large number of LaTeX expressions, edge cases, and examples from GitHub.
• Refactored and improved code documentation.

Bug fixes

• Fixes #33 (adds \lceil, \rceil, \lfloor, \rfloor)
• Fixes #24 (can mix & match different types of brackets, e.g. TeX("$\\left(\\frac{M}{L}\\right.$"))

0.5.0 (03/14/2021)

New features

• Update documentation to use the new raw strings introduced in R 4.0 (which lets one do away with the quoting of the backslash character; e.g. one can use TeX(r'($\alpha^\beta$)') rather than TeX('\\alpha^\\beta))
• Adds parameters bold and italic to TeX(). These can be used to make the entire expression bold or italic.
• Adds \phantom{} (PR)

0.4.0 [08/29/2015]

New features

• Deprecated the latex2exp() function; use TeX() instead.
• Added \lbrack and \rbrack to type left and right square brackets.

0.3.3 [08/11/2015]

Bug fixes

Fixes bug #4 (“fix parsing of numbers”), where certain numbers inside formulas where not parsed correctly.

0.3.2 [07/28/2015]

Bug fixes

Fixes bug #3 (“subscript and superscript style”). latex2exp now renders combined subscripts and superscripts correctly.

0.3.1 [07/02/2015]

Bug fixes

Fixes bug #2 (white space causes unexpected behaviour). latex2exp should now be a bit more compliant with how LaTeX handles whitespace.

0.3.0 [06/30/2015]

latex2exp is now a proper package.

0.2.0 [06/29/2015]

Formulas must now be enclosed between dollar characters ($), as in LaTeX proper. Text does not need to be enclosed in \text tags anymore.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.