Elias delta coding

Elias delta code is a universal code encoding the positive integers developed by Peter Elias.

To code a number X≥1:

An equivalent way to express the same process:

To represent a number ${\displaystyle x}$, Elias delta uses ${\displaystyle \lfloor \log _{2}(x)\rfloor +2\lfloor \log _{2}(\lfloor \log _{2}(x)\rfloor +1)\rfloor +1}$ bits.

The code begins, using ${\displaystyle \gamma '}$ instead of ${\displaystyle \gamma }$:

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