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Peter linz exercise 3.1 qsn 20(c)
Kakashi
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Theory of Computation
Mar 21, 2018
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Mar 24, 2018
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Sukanya Das
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Give regular expression for all strings containing odd number of zeros on $\{0,1\}$
theory-of-computation
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Kakashi
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Mar 21, 2018
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Sukanya Das
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Mk Utkarsh
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Mar 21, 2018
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peter linz which edition? because i'm not able to find this question
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$(1^{*}01^{*}0)^{*}1^{*}01^{*}$
Mk Utkarsh
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Mar 21, 2018
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Mar 22, 2018
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Mar 22, 2018
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Peter Linz 6th edition.
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Mar 22, 2018
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ok thanks :)
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Ans.1*0(1+01*0)*
Prince Sindhiya
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Apr 6, 2018
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abhishekmehta4u
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Apr 6, 2018
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Your regular expression not genrate string 10.
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Yeah, i made it correct now see.
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Naveen Kumar 3
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Apr 2, 2019
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Peter Linz Edition 4 Exercise 3.1 Question 20 (Page No. 77)
Determine whether or not the following claims are true for all regular expressions $r_1$ and $r_2$. The symbol $≡$ stands for equivalence of regular expressions in the sense that both expressions denote the same language. (a) $(r_1^*)^*≡r_1^*$. (b) $r_1^*(r_1+r_2)^*≡(r_1+r_2)^*$. (c)$(r_1+r_2)^*≡(r_1^*r_2^*)^*$. (d)$(r_1r_2)^*≡r_1^*r_2^*$.
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Subham Nagar
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May 4, 2018
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Peter Linz Chapter 4.3 Exercise Q.20
I don't think it will be regular . Had the language been uwwRv the expression could have been (a+b)*(aa+bb)(a+b)* as there is no restriction on w. Is it correct? and if it isn't regular, is it a CFL?
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Mk Utkarsh
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Mar 14, 2018
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Peter Linz Edition 4 Exercise 3.1 Question 16.c (Page No. 76)
Give regular expression for the following language on $\sum = \left \{ a,b,c \right \}$ All strings that contain at least one occurrence of each symbol in $\sum$
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Peter Linz Edition 4 Exercise 3.2 Question 1 (Page No. 87)
Find an nfa that accepts the language $L (ab^*aa + bba^*ab)$.
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