malachite_q/rational_vector/conversion/string/
latex.rs

1// Copyright © 2026 Mikhail Hogrefe
2//
3// This file is part of Malachite.
4//
5// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
6// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
7// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.
8
9use crate::rational_vector::RationalVector;
10use core::fmt::{Formatter, Result};
11use malachite_base::strings::latex::ToLatex;
12
13impl ToLatex for RationalVector {
14    /// Writes a [`RationalVector`] as a LaTeX math-mode fragment.
15    ///
16    /// The elements' fragments are separated by commas and enclosed in parentheses that grow to fit
17    /// their contents, as a vector's coordinates are written by hand. The 0-dimensional vector is
18    /// `\left(\right)`.
19    ///
20    /// # Worst-case complexity
21    /// $T(n) = O(n (\log n)^2 \log\log n)$
22    ///
23    /// $M(n) = O(n \log n)$
24    ///
25    /// where $T$ is time, $M$ is additional memory, and $n$ is the sum of the bits of the elements.
26    ///
27    /// # Examples
28    /// ```
29    /// use core::str::FromStr;
30    /// use malachite_base::strings::latex::ToLatex;
31    /// use malachite_q::Rational;
32    /// use malachite_q::rational_vector::RationalVector;
33    ///
34    /// let v = RationalVector {
35    ///     elements: vec![Rational::from(1u32), Rational::from(2u32), Rational::from(3u32)],
36    /// };
37    /// assert_eq!(v.to_latex_string(), "\\left(1, 2, 3\\right)");
38    /// assert_eq!(
39    ///     RationalVector::from_str("(1/2)").unwrap().to_latex_string(),
40    ///     "\\left(\\frac{1}{2}\\right)"
41    /// );
42    /// assert_eq!(
43    ///     RationalVector {
44    ///         elements: vec![Rational::from(5u32)]
45    ///     }
46    ///     .to_latex_string(),
47    ///     "\\left(5\\right)"
48    /// );
49    /// assert_eq!(
50    ///     RationalVector {
51    ///         elements: Vec::new()
52    ///     }
53    ///     .to_latex_string(),
54    ///     "\\left(\\right)"
55    /// );
56    /// ```
57    ///
58    /// The value column holds each vector as [`Display`](core::fmt::Display) writes it.
59    ///
60    /// | value       | fragment                   | renders as                 |
61    /// |-------------|----------------------------|----------------------------|
62    /// | `(1/2)`     | `\left(\frac{1}{2}\right)` | $\left(\frac{1}{2}\right)$ |
63    /// | `(1, 2, 3)` | `\left(1, 2, 3\right)`     | $\left(1, 2, 3\right)$     |
64    /// | `(5)`       | `\left(5\right)`           | $\left(5\right)$           |
65    /// | `()`        | `\left(\right)`            | $\left(\right)$            |
66    fn fmt_latex(&self, f: &mut Formatter) -> Result {
67        f.write_str("\\left(")?;
68        for (i, x) in self.elements.iter().enumerate() {
69            if i != 0 {
70                f.write_str(", ")?;
71            }
72            x.fmt_latex(f)?;
73        }
74        f.write_str("\\right)")
75    }
76}
malachite_q/rational_vector/conversion/string/latex.rs

malachite_q/rational_vector/conversion/string/
latex.rs
