From 5845cd23dd03e9c957d357ee4cc2c92e7369442d Mon Sep 17 00:00:00 2001
From: mcditooss <gerardofingurbe@gmail.com>
Date: Fri, 15 Nov 2024 09:23:19 +0100
Subject: [PATCH] restore change so test do not fail on macOS

---
 qutip/core/environment.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/qutip/core/environment.py b/qutip/core/environment.py
index a27aee2b61..4dd41786b5 100644
--- a/qutip/core/environment.py
+++ b/qutip/core/environment.py
@@ -1339,8 +1339,7 @@ def _matsubara_params(self, Nk):
         Om = np.sqrt(self.w0**2 - (self.gamma / 2)**2)
         Gamma = self.gamma / 2
 
-        z = (np.inf * (1 + 1j) if self.T == 0
-             else (Om + 1j * Gamma) / (2*self.T))
+        z = float('inf') if self.T == 0 else (Om + 1j * Gamma) / (2*self.T)
         # we set the argument of the hyperbolic tangent to infinity if T=0
         ck_real = ([
             (self.lam**2 / (4 * Om))