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https://github.com/mate-desktop/mate-calc/issues/239
https://github.com/mate-desktop/mate-calc/pull/240
From 220027f5ab946a1ca38f9888fdbe64630106aecc Mon Sep 17 00:00:00 2001
From: mbkma <johannes.unruh@fau.de>
Date: Sun, 19 Apr 2026 11:32:51 +0200
Subject: [PATCH] Set imaginary component to +0*i when inverting a real number
see https://gitlab.gnome.org/GNOME/gnome-calculator/-/merge_requests/457
---
src/mp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/mp.c b/src/mp.c
index 31a84d4d..08e7afce 100644
--- a/src/mp.c
+++ b/src/mp.c
@@ -398,6 +398,10 @@ void
mp_invert_sign(const MPNumber *x, MPNumber *z)
{
mpc_neg(z->num, x->num, MPC_RNDNN);
+ if (!mp_is_complex(x))
+ {
+ mpfr_set_zero(mpc_imagref(z->num), MPFR_RNDN);
+ }
}
void
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