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Consider a language Lodd defined as follows: • a € Lodd for a € {1,3,5,7,9} •...
String digit sums. Consider strings over the alphabet 2= {0,1,2,3,4,5,6,7,8,9). We will recursively define the digsum...
String digit sums. Consider strings over the alphabet 2= {0,1,2,3,4,5,6,7,8,9). We will recursively define the digsum function as follows: • digsum(€)=0 • digsum(ax)=a + digsum(x), where a e is interpreted as the numeric value of the digit. Just can't even. Consider a language Lodd defined as follows: • a € Lodd for a € {1,3,5,7,9} • ax e Lodd for a € {0,2,4,6,8) and x € Lodd • axb e Lodd for a, b € {1,3,5,7,9) and x € Lodd...
Suppose the language L ? {a, b}? is defined recursively as follows: ? L; for every...
Suppose the language L ? {a, b}? is defined recursively as
follows:
? L; for every x ? L, both ax and axb are
elements of L.
Show that L = L0 , where L0 =
{aibj | i ? j }. To show that L ? L 0
you
can use structural induction, based on the recursive definition of
L. In the other direction, use strong induction on the length of a
string in L0.
1.60. Suppose the language...
In the Pascal programming language, the If-Statement is defined as follows: Consider the following statement, and...
In the Pascal programming language, the If-Statement is defined as follows: Consider the following statement, and then answer the related questions: <If-Statement> ::= If <Condition> Then <Statement> [Else<Statement>] <Statement> ::= <If-Statement> | <While-Statement> | <For-Statement> | <Assignment-Statement> <Condition> ::= [not] <Condition> | [not] <BooleanVariable> | <Variable> <Operator> Variable> | <Variable> <Operator> <Expression> | < Expression > <Operator> <Variable> | < Expression > <Operator> < Expression> | < Expression > <Operator> < Literal > | <Variable> <Operator> < Literal > <Operator>...
et l(a) be the language generated by g(a) - (n, 2, s, p) where 2 -...
et l(a) be the language generated by g(a) - (n, 2, s, p) where 2 - [a, b), n= {s,x) and s->axb ... Question: Let L(a) be the language generated by G(a) - (N, 2, S, P) where 2 - [a, b), N= {S,X) and S->aX... Let L(a) be the language generated by G(a) - (N, 2, S, P) where 2 - [a, b), N= {S,X) and S->aXb X->aX|bX|epsilon (i) (3 marks) Describe the language L(a). (First generate a few...
Let S be the set of binary strings defined recursively as follows: Basis step: 0ES Recursive step...
discrete math. Structural Induction: Please write and
explain clearly. Thank you.
Let S be the set of binary strings defined recursively as follows: Basis step: 0ES Recursive step: If r ES then 1rl E S and 0x0ES (I#x and y are binary strings then ry is the concatenation of and y. For instance, if 011 and y 101, then ry 011101.) (a) List the elements of S produced by te first 2 applications of the recursive definition. Find So, Si...
2. (7 pt) Recall that the variance of a random variable X is defined by Var(X)...
2. (7 pt) Recall that the variance of a random variable X is defined by Var(X) - E(X - EX)2. Select all statements that are correct for general random variables X,Y. Throughout, a, b are constants. ( Var(X) E(X2) (EX)2 ( ) Var(aX + b) = a2 Var(X) + b2 Var(aXb)a Var(X)+b ( ) Var(X + Y) = Var(X) + Var(Y) ) Var(x) 2 o ) Var(a)0 ( ) var(x") (Var(X))"
A + b a-b The quantity X is defined as follows: X where a and b are measured quantities. In our c...
a + b a-b The quantity X is defined as follows: X where a and b are measured quantities. In our case, a 9, b 10, and both quantities are measured by a relative error of h-0.1%. Calculate the relative error of X by the probabilistic summation of the error components! Select one AX O A. 1.41% ○ B.AY=: 0.141% О с.--0.2% AX
a + b a-b The quantity X is defined as follows: X where a and b are...
Digital signal processing question: 1. Consider the STDTFT defined as jwk where n] is the speech...
Digital signal processing question:
1. Consider the STDTFT defined as jwk where n] is the speech signal and wIn] is the window sequence. Prove the following properties a. Linearity -if n]-ax[n]+by[n], then V(o,n)-aX(o,n)+bY(o,n b. Shifting-ifYn]=x(n-n] , then V(a,n)-X(a,n-nen, c. Modulation _ ifv[n] =x(n em," , then l'(?,n)=X(?-o,,n). d. Show that can be put in the form ie. X(a,n) is a smoothed spectral estimate of X(?) at frequency ?,
Let Σ = { a, b } , and consider the language L = { a...
Let Σ = { a, b } , and consider the language L = { a n : n is even } ∪ { b n : n is odd } . Draw a graph representing a DFA (not NFA) that accepts this language.
8. Let D be the set whose members are defined as follows. Basis Step: the number...
8. Let D be the set whose members are defined as follows. Basis Step: the number 3ED Recursive Step: if x E D and y e D, then x + y e D. Prove that D={3n:n e +}.
String digit sums. Consider strings over the alphabet 2= {0,1,2,3,4,5,6,7,8,9). We will recursively define the digsum function as follows: • digsum(€)=0 • digsum(ax)=a + digsum(x), where a e is interpreted as the numeric value of the digit. Just can't even. Consider a language Lodd defined as follows: • a € Lodd for a € {1,3,5,7,9} • ax e Lodd for a € {0,2,4,6,8) and x € Lodd • axb e Lodd for a, b € {1,3,5,7,9) and x € Lodd...
Suppose the language L ? {a, b}? is defined recursively as
follows:
? L; for every x ? L, both ax and axb are
elements of L.
Show that L = L0 , where L0 =
{aibj | i ? j }. To show that L ? L 0
you
can use structural induction, based on the recursive definition of
L. In the other direction, use strong induction on the length of a
string in L0.
1.60. Suppose the language...
discrete math. Structural Induction: Please write and
explain clearly. Thank you.
Let S be the set of binary strings defined recursively as follows: Basis step: 0ES Recursive step: If r ES then 1rl E S and 0x0ES (I#x and y are binary strings then ry is the concatenation of and y. For instance, if 011 and y 101, then ry 011101.) (a) List the elements of S produced by te first 2 applications of the recursive definition. Find So, Si...
2. (7 pt) Recall that the variance of a random variable X is defined by Var(X) - E(X - EX)2. Select all statements that are correct for general random variables X,Y. Throughout, a, b are constants. ( Var(X) E(X2) (EX)2 ( ) Var(aX + b) = a2 Var(X) + b2 Var(aXb)a Var(X)+b ( ) Var(X + Y) = Var(X) + Var(Y) ) Var(x) 2 o ) Var(a)0 ( ) var(x") (Var(X))"
a + b a-b The quantity X is defined as follows: X where a and b are measured quantities. In our case, a 9, b 10, and both quantities are measured by a relative error of h-0.1%. Calculate the relative error of X by the probabilistic summation of the error components! Select one AX O A. 1.41% ○ B.AY=: 0.141% О с.--0.2% AX
a + b a-b The quantity X is defined as follows: X where a and b are...
Digital signal processing question:
1. Consider the STDTFT defined as jwk where n] is the speech signal and wIn] is the window sequence. Prove the following properties a. Linearity -if n]-ax[n]+by[n], then V(o,n)-aX(o,n)+bY(o,n b. Shifting-ifYn]=x(n-n] , then V(a,n)-X(a,n-nen, c. Modulation _ ifv[n] =x(n em," , then l'(?,n)=X(?-o,,n). d. Show that can be put in the form ie. X(a,n) is a smoothed spectral estimate of X(?) at frequency ?,
8. Let D be the set whose members are defined as follows. Basis Step: the number 3ED Recursive Step: if x E D and y e D, then x + y e D. Prove that D={3n:n e +}.
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