From 59fe5f3e7a70fcf3d63350c9cc54c0f98d05ee16 Mon Sep 17 00:00:00 2001
From: Philipp Rehner <prehner@ethz.ch>
Date: Fri, 24 Jul 2026 18:07:26 +0200
Subject: [PATCH] Add into_dimensionality and into_dyn

---
 CHANGELOG.md        |  4 ++++
 Cargo.toml          |  2 +-
 si-units/src/fmt.rs |  4 ++--
 src/array.rs        | 19 +++++++++++++++++--
 4 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4d742e..979ca81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.14.1] - 2026-07-24
+### Added
+- Added `into_dimensionality` and `into_dyn` for quantities of arrays. [#119](https://github.com/itt-ustutt/quantity/pull/119)
+
 ## [0.14.0] - 2026-06-14
 ### Packaging
 - Updated `nalgebra` dependency to 0.35.
diff --git a/Cargo.toml b/Cargo.toml
index d8e3138..5b0f580 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "quantity"
-version = "0.14.0"
+version = "0.14.1"
 authors = [
     "Philipp Rehner <prehner@ethz.ch>",
     "Gernot Bauer <bauer@itt.uni-stuttgart.de>",
diff --git a/si-units/src/fmt.rs b/si-units/src/fmt.rs
index bce1152..1f0b817 100644
--- a/si-units/src/fmt.rs
+++ b/si-units/src/fmt.rs
@@ -67,10 +67,10 @@ impl SINumber {
             format!(
                 "{}\\,{}",
                 float_to_latex(value),
-                &unit_to_latex(symbols, exponents, Some(prefix))
+                unit_to_latex(symbols, exponents, Some(prefix))
             )
         } else {
-            format!("{}\\,{}", float_to_latex(self.value), &self.unit.to_latex())
+            format!("{}\\,{}", float_to_latex(self.value), self.unit.to_latex())
         }
     }
 }
diff --git a/src/array.rs b/src/array.rs
index f924363..041a620 100644
--- a/src/array.rs
+++ b/src/array.rs
@@ -1,8 +1,8 @@
 use super::Quantity;
 use ndarray::iter::LanesMut;
 use ndarray::{
-    Array, Array1, ArrayBase, ArrayView, Axis, Data, DataMut, Dimension, NdIndex, RemoveAxis,
-    ShapeBuilder,
+    Array, Array1, ArrayBase, ArrayView, Axis, Data, DataMut, Dimension, IxDyn, NdIndex,
+    RemoveAxis, ShapeBuilder, ShapeError,
 };
 use num_traits::Zero;
 use std::iter::FromIterator;
@@ -159,6 +159,21 @@ impl<T, S: Data<Elem = T>, U, D: Dimension> Quantity<ArrayBase<S, D>, U> {
         Quantity::new(self.0.insert_axis(axis))
     }
 
+    /// Convert an array or array view to another with the same type, but different dimensionality
+    /// type. Errors if the dimensions don't agree (the number of axes must match).
+    pub fn into_dimensionality<D2>(self) -> Result<Quantity<ArrayBase<S, D2>, U>, ShapeError>
+    where
+        D2: Dimension,
+    {
+        self.0.into_dimensionality().map(Quantity::new)
+    }
+
+    /// Convert any array or array view to a dynamic dimensional array or
+    /// array view (respectively).
+    pub fn into_dyn(self) -> Quantity<ArrayBase<S, IxDyn>, U> {
+        Quantity::new(self.0.into_dyn())
+    }
+
     /// Return the element at `index`.
     ///
     /// The `Index` trait can not be implemented, because a new instance has to be created,