From dbd3eb5d1b68143ccbea16c3b6fd97db8f701f9e Mon Sep 17 00:00:00 2001
From: Sebastian Steger <s.steger@hs-mannheim.de>
Date: Wed, 20 Aug 2025 15:14:30 +0200
Subject: [PATCH] functions stub

---
 haskell/03-functions/functions.hs | 33 +++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 haskell/03-functions/functions.hs

diff --git a/haskell/03-functions/functions.hs b/haskell/03-functions/functions.hs
new file mode 100644
index 0000000..a601809
--- /dev/null
+++ b/haskell/03-functions/functions.hs
@@ -0,0 +1,33 @@
+
+-- single parameter
+
+-- two parameters
+
+-- ============= pattern matching =================
+
+-- ============= guards =================
+
+-- ============= recursive algorithms =================
+
+-- ============= recursive list algorithms =================
+
+-- ============= merge sort =================
+
+-- =========== Filter all numbers that can be divided by 10 ===========
+
+-- ========================== standard deviation using lambdas =====================
+-- The standard deviation is a measure of the amount of variation or dispersion of a set of values.
+-- It is defined as the square root of the average of the squared differences from the mean.
+--
+-- Formula:
+--   σ = sqrt( (1/N) * Σ (xi - μ)^2 )
+-- where:
+--   - σ is the standard deviation,
+--   - N is the number of values,
+--   - xi represents each value,
+--   - μ is the mean of the values.
+
+stddev seq = 0
+
+-- ======================= order list of strings by length =================
+