Log is a control-domain math block that outputs the natural logarithm (base e) of its control input. It operates on control signals only, mapping a single control input to a single control output, and has no adjustable parameters. The natural logarithm is defined for positive inputs.
On every tick it evaluates the natural log of the current control value and writes the result to its control output. It runs once per engine tick, one sample-frame at a time, in keeping with WaveWarp's sample-per-sample engine.