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How can you take 1 away from I9 and get 20?
You can't. 19 - 1 = 18, not 20.
Develop the Boolean equation for the Y3 output of a decimal-to-binary encoder with inputs I0-I9 and outputs Y0-Y3?
Although it's been a while, I am nonetheless almost irresistibly temptedto rush in here, where so many others might fear to tread.I'll asume that I0 and Y0 are the least significant digits on both sides.Then Y3 = 1 when I8 or I9 = 1 . Then the output is [ 1000 ] or [ 1001 ] respectively.So now I have to dredge up how to say that in Boolean.How about . . .Y3 = (I8 + I9) (not-I0 not-I1 ..... not-I6 not-I7)or the equivalent . . .Y3 = (I8 + I9) AND NOT(I0 + I1 + ..... + I6 + I7)But wait ! All of the lower decimal input lines ARE zero when theinput is 8 or 9, so I don't have to specify them.Y3 is just (I8 + I9) .Sometimes I amaze myself. What else could my hard-drive haveaccomodated, if only I had deleted this stuff 50 years ago. I feltthat I'd need it some day, and ... son of a gun ... I did, just now !
What is the purpose of point slope form?
The purpose is to easily convey the slope of a line and a point it passes through in algebraic form. With these two pieces of information it is possible to map a line in in 2D space.
What is the purpose of a zero in a number written in standard form?
the number is 4
What is the purpose of the coordination system?
To plot straight and curved lines on it in the form of equations
