3. Let Σ* be the language using letters from Σ = {a, b}. We've already seen a useful function from * to N. It is the length function, which already has a name: length. Calculate (b) length(aaaaaaaa) (a) length(bab) (c) length(2) (d) What is the image set Im(length) for this function? Explain.
3. Let Σ* be the language using letters from Σ = {a, b}. We've already seen a useful function from * to N. It is the length function, which already has a name: length. Calculate (b) length(aaaaaaaa) (a) length(bab) (c) length(2) (d) What is the image set Im(length) for this function? Explain.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:3. Let Σ* be the language using letters from Σ = (a, b).
We've already seen a useful function from Σ* to N. It
is the length function, which already has a name: length.
Calculate
(a) length(bab)
(c) length(2)
(d) What is the image set Im(length) for this function?
Explain.
(b) length(aaaaaaaa)
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