Exam (elaborations)
COS3701 Assignment 3 2023
- Institution
- University Of South Africa (Unisa)
QUESTIONS AND ANSWERS
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COS3701Assignment
3 2023
(217155)
, lOMoARcPSD|24668432
BAR CODE
ASSIGNMENT 03(Self assessment)
Solution
You have now been introduced to Turing Machines (TMs). We hope that you will come to know and love
them. Please work through our solutions carefully and compare them to yours. Note that if not otherwise
indicated we assume that the alphabet is Σ = {a , b} .
Question 1
Build/design a TM that
• loops on all words that begin with 0,
• changes all other instances of 0 on the input tape into 1.
In this case the input alphabet must obviously be Σ = {0, 1 }. The TM in
Figure 1 solves this problem.
2
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