From eb435b76b3433ed97837299329229e919c3fffd6 Mon Sep 17 00:00:00 2001
From: BonfaceKilz
Date: Wed, 26 Jan 2022 11:26:35 +0300
Subject: topics: editing-data: Comment on the 3-dp patch

---
 topics/data-uploads/editing-data.gmi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'topics')

diff --git a/topics/data-uploads/editing-data.gmi b/topics/data-uploads/editing-data.gmi
index 0dbc7b4..6ae2015 100644
--- a/topics/data-uploads/editing-data.gmi
+++ b/topics/data-uploads/editing-data.gmi
@@ -126,3 +126,20 @@ guix install pudb -p ~/opt/pudb
 
 - To use pudb, just stick `import pudb; pu.db` wherever you fancy.
   Happy debugging!
+
+### Wed 26 Jan 2022
+
+Fixed precision point errors.  During file upload, excel appended
+extra values; so instead of `BXD1,18.8,x,x`, you'd have
+`BXD1,18.8000001,20,x`.  There are 2 parts to fixing this:
+
+- During generating the json file(when creating the diff), ignore
+  modifications where |ε| > 0.0001.
+
+- When listing diffs, ignore modification entries where |ε| > 0.0001.
+
+For this fix, the second bit was ignored, because it'll lead to
+unnecessarily complicated code, given that only one person has really
+been testing the system.
+
+
-- 
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