Overview
The Analog Minimum is an Analog Gate that outputs the smallest input. The equation for the output Redstone signal (O) based on two input Redstone signals (A and B) is:
O = min(A, B)
The output signal is capped at 15 since Redstone operates on signal levels ranging from 0 to 15.
Configuration
The inputs are marked with Pin Mark A and can be configured to face any direction by right-clicking the block.
Parallel Analog Minimum
The Analog Minimum also has a Parallel Gate variant. In this configuration, the output is determined using the equation:
O = min(B, max(R, L))
Here, max(R, L) identifies the greatest signal between the Left (L) and Right (R) sides before being combined with the signal from the Back (B).
As always, the output signal is limited to a maximum of 15.