From a64afcbe4d02b983a445378ecf4cb6856b2ae79a Mon Sep 17 00:00:00 2001
From: Jan Petykiewicz <jan@mpxd.net>
Date: Tue, 22 Nov 2022 14:44:54 -0800
Subject: [PATCH] Add more info to log message

---
 meanas/fdfd/bloch.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/meanas/fdfd/bloch.py b/meanas/fdfd/bloch.py
index 4f6d90c..cb6056c 100644
--- a/meanas/fdfd/bloch.py
+++ b/meanas/fdfd/bloch.py
@@ -562,7 +562,10 @@ def eigsolve(
         G = (AZ @ U - Z @ U @ ZtAZU) * sgn
 
         if i > 0 and abs(E - prev_E) < tolerance * 0.5 * (E + prev_E + 1e-7):
-            logger.info('Optimization succeded: {} - 5e-8 < {} * {} / 2'.format(abs(E - prev_E), tolerance, E + prev_E))
+            logger.info('Optimization succeded: '
+                f'[change in trace] {abs(E - prev_E)} - 5e-8 '
+                f'< {tolerance} [tolerance] * {(E + prev_E) / 2} [value of trace]'
+                )
             break
 
         KG = scipy_iop @ G