// multi-utility computation suite · offline · instant · precise
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math.stirling-approximation Calculator
Applies Stirling's approximation (n! ≈ √(2πn) × (n/e)ⁿ) to estimate large factorials and log-factorials. Factorials grow faster than exponentials — Stirling's approximation makes them tractable in information theory and statistical mechanics.
Inputs
N
Reference formula or conversion factor shown for context.