Fig. 4: Realization of logic gates NOT, OR, and AND.
From: A mechanical metamaterial with reprogrammable logical functions

a Truth tables of AND, OR, and NOT. b Distribution of the on-off states of the ReIM to realize NOR, AND, OR, and NOT gates. If the non-volatile memory element marked with “in” is in on(off) state, the corresponding input port of logic gates will receive a signal input 1(0). The non-volatile memory element marked with “out” is in on state. Other elements are in off state and are ignored. c Experiment realizations and the corresponding FEM displacement contours of the logic gates with different logic inputs.