four squares
47.
To plot the expression RS+RT on an eight-
two squares
square Veitch
diagram, work with only one
one square
term at a time.
Start with the first
term
on the left (RS).
As stated previously, a
two-variable term occupies two squares on an
eight-square Veitch diagram.
To determine
the proper squares, take each variable of the
term (RS) and determine which squares are
common to both variables, as follows:
R = squares 1,2, 5, and 6
S = squares 1, 2, 3, and 4
Squares 1 and 2 are common to both the R plot
and the S plot (they are common to RS).
Therefore, the plot for the term RS Is
squares 1 and 2, as shown below.
To complete the plot of the expression RS+RT,
the second term (RT) must still be plotted.
Plot the second term (RT) in the diagram
above.
1-25
IT0345
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