3. Lexical Half-Life

Worked example

1. Scenario 1

   Worked example

   DatasetMath steps

   Scenario

   Using the sample Kifuliiru field values below, compute Lexical Half-Life.

   Input data

   Illustrative inputs

   Quantity	Symbol	Value
   Half-life time (in years or generations)	t	1
   Decay constant (annual retention rate, 0-1)	c	0.63

   Function used

   lnNatural logarithm

   Reasoning

   Use the listed values (t = 1, c = 0.63) in the formula, then complete the remaining symbolic step by hand or in the playground. Interpret the result against the formula's stated purpose.

   Computation

   $$t=\frac{\ln (0.5)}{\ln (c)}$$