Editing Shannon–Fano coding (section)

=== Expected word length ===

It is shown by Krajči et al<ref name="Kraj" /> that the expected length of Fano's method has expected length bounded above by <math>\mathbb{E}L \leq H(X) + 1 - p_\text{min}</math>, where <math>p_\text{min} = \textstyle\min_i p_i</math> is the probability of the least common symbol.