-- 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 =================