FIELD: automatic control and analog computer engineering. SUBSTANCE: logic element has single-switch output and input relators and n-2 three-switch relators each built up of comparator controlling state of switches. Logic element input is connected to first switch-over input of second relator; second and third switch-over inputs of all intermediate relators are interconnected, first and second outputs of all intermediate relators are interconnected; output of input relator is connected to third switch-over input of second relator; first and third switch-over inputs of all next intermediate relators are connected, respectively, to first and third outputs of each preceding relator; first and third outputs of (n-1) (last but one) relator are connected, respectively, to switch-over input and output of next nth relator. EFFECT: provision for paired rank identification and selection of minimal and superminimal or maximal and submaximal values of analog signal, tolerance control, etc. 2 dwg
