
Concept explainers
(a)
To write: the uncoded
(a)

Answer to Problem 54E
Uncoded matrices for the given massage are,
Explanation of Solution
Given information:
Given massage
ICEBERG DEAD AHEAD
Given matrix
Calculation:
The message to be encoded is:
ICEBERG DEAD AHEAD
Partition the message including blank spaces into groups of three.
Thus, the uncoded row matrices will be,
(b)
To encode: the massage using the encoding matrix.
(b)

Answer to Problem 54E
13 19 26 -1 -33 -77 3 -2 -14 4 1 -9 -5 -25 -47 4 1 -9
Explanation of Solution
Calculation:
The coded row matrices are obtained by multiplying each of the uncoded row matrices by the matrix
Uncoded Matrix encoding matrix coded matrix
So the sequence of coded row matrices
Finally removing the matrix notation produces the following cryptogram,
13 19 26 -1 -33 -77 3 -2 -14 4 1 -9 -5 -25 -47 4 1 -9
Chapter 8 Solutions
Precalculus with Limits
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