Before revision: Examples + Digits in 7-segment display 00 01 11 10 00 x30px x30px x30px x30px 01 x30px x30px x30px x30px 11 10 x30px x30px + Karnaugh map for lower left segment 00 01 11 10 00 01 11 10 + Don't-care terms to get minimal circuit 00 01 11 10 00 01 11 10 Examples of don't-care terms are the binary values 1010 through 1111 (10 through 15 in decimal) for a function that takes a binary-coded decimal (BCD) value, because a BCD value never takes on such values (so called pseudo-tetrades); in the pictures, the circuit computing the lower left bar of a 7-segment display can be minimized to by an appropriate choice of circuit outputs for .
After revision: Examples + Don't-care terms to get minimal circuit 00 01 11 10 00 x30px x30px x30px x30px 01 x30px x30px x30px x30px 11 10 x30px x30px + Karnaugh map for lower left segment 00 01 11 10 00 01 11 10 + Digits in 7-segment displayx30px x30px x30px x30pxx30px x30px x30px x30pxx30px x30px 00 01 11 10 00 01 11 10 Examples of don't-care terms are the binary values 1010 through 1111 (10 through 15 in decimal) for a function that takes a binary-coded decimal (BCD) value, because a BCD value never takes on such values (so called pseudo-tetrades); in the pictures, the circuit computing the lower left bar of a 7-segment display can be minimized to by an appropriate choice of circuit outputs for .