From 9c93a58b5d648697806075dc2cc41cf33cf33464 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Crozet=20S=C3=A9bastien?= <developer@crozet.re>
Date: Sun, 25 Oct 2020 11:25:38 +0100
Subject: [PATCH] Add Vector::ith_axis to build an unit vector with its i-th
 component set to 1.

---
 src/base/construction.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/base/construction.rs b/src/base/construction.rs
index f810acdf..aa4cf956 100644
--- a/src/base/construction.rs
+++ b/src/base/construction.rs
@@ -1019,6 +1019,12 @@ where
         res
     }
 
+    /// The column unit vector with `N::one()` as its i-th component.
+    #[inline]
+    pub fn ith_axis(i: usize) -> Unit<Self> {
+        Unit::new_unchecked(Self::ith(i, N::one()))
+    }
+
     /// The column vector with a 1 as its first component, and zero elsewhere.
     #[inline]
     pub fn x() -> Self