https://gitlab.gnome.org/GNOME/gnome-calculator/-/issues/531
https://gitlab.gnome.org/GNOME/gnome-calculator/-/merge_requests/457

From c9bf69ce3688390a584ca7571ea5fcda5aea8863 Mon Sep 17 00:00:00 2001
From: Weijia Wang <contact@weijia.wang>
Date: Fri, 17 Apr 2026 16:21:25 +0200
Subject: [PATCH] Set imaginary component to +0*i when inverting a real number

---
 lib/number.vala | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/number.vala b/lib/number.vala
index f45565b0..505c48eb 100644
--- a/lib/number.vala
+++ b/lib/number.vala
@@ -369,6 +369,8 @@ public class Number : GLib.Object
     {
         var z = new Number ();
         z.num.neg (num);
+        if (!is_complex ())
+            z.num.get_imag ().val.set_zero ();
         return z;
     }
 
-- 
GitLab