From 30ca98f1cbb7ec89e148790deb55ccf48c4e1c89 Mon Sep 17 00:00:00 2001
From: Joe Carstairs <me@joeac.net>
Date: Wed, 16 Jul 2025 07:57:43 +0100
Subject: add req-041, req-042

---
 requirements/catalogue/req-042.md | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 requirements/catalogue/req-042.md

(limited to 'requirements/catalogue/req-042.md')

diff --git a/requirements/catalogue/req-042.md b/requirements/catalogue/req-042.md
new file mode 100644
index 0000000..430683c
--- /dev/null
+++ b/requirements/catalogue/req-042.md
@@ -0,0 +1,9 @@
+# req-042
+
+The procedure, `calculate_bucket_balance`, as described in req-030, returns the
+difference between the amounts of drips into it and the amounts of transactions
+out of it.
+
+Sources: req-010, req-039
+
+See also: ass-008
-- 
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