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Newnes Circuit Calculations Pocket Book
book

Newnes Circuit Calculations Pocket Book

by Thomas J. Davies
April 2016
Intermediate to advanced content levelIntermediate to advanced
384 pages
12h 56m
English
Newnes
Content preview from Newnes Circuit Calculations Pocket Book
336 Circuit calculations pocket book
Example 16 Subtract 1111 from
11111,
i.e. subtract 01111 from
11111
+ 10000 l's complement
R—101111
01111
1
> + 1
10000
If there is no end around carry, the answer is negative, and the
answer is in the l's complement form. Taking the l's complement
and adding the negative prefix will give the answer, as the next
example shows.
Example 17 Subtract 1101 from 1001.
1001 9
0010 l's complement-13
Ton
~^4
The answer is the l's complement of 1011 = -0100 = -4.
(e) The 2's complement
This is another method of subtracting binary numbers. The 2's
complement of a binary number is found by first finding the l's
complement ...
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Publisher Resources

ISBN: 9781483101132