From 9f50a0fc550972fd34823f58717cf01fad08f16e Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Mon, 16 Jun 2025 22:19:42 +0200
Subject: [PATCH] docs: `relative_point_origin` added to the absolute
 quantities blog post

---
 docs/blog/posts/introducing-absolute-quantities.md | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/docs/blog/posts/introducing-absolute-quantities.md b/docs/blog/posts/introducing-absolute-quantities.md
index f2e33e74..a651b960 100644
--- a/docs/blog/posts/introducing-absolute-quantities.md
+++ b/docs/blog/posts/introducing-absolute-quantities.md
@@ -135,9 +135,13 @@ will not need any specifier to denote them.
 For example:
 
 ```cpp
-quantity<point<isq::mass>> m1(10 * kg);   // point quantity with an implicit point origin
-quantity<isq::mass>        m2 = 15 * kg;  // absolute quantity (e.g., non-negative)
-quantity<delta<isq::mass>> m3 = m1 - m2;  // delta quantity (e.g., may be negative)
+inline constexpr struct tare final : relative_point_origin<quantity_point{2 * kg}> {} tare;
+
+quantity<point<isq::mass>> m1(10 * kg);          // point quantity with an implicit point origin
+quantity<point<isq::mass>> m2 = tare + 8 * kg;   // point quantity with an explicit relative point origin
+quantity<isq::mass>        m3 = 15 * kg;         // absolute quantity (e.g., non-negative)
+quantity<delta<isq::mass>> m13 = m1 - m3;        // delta quantity (e.g., may be negative)
+quantity<delta<isq::mass>> m23 = m2 - m3;        // delta quantity (e.g., may be negative)
 ```
 
 With the above, the previous examples may be refactored to: