Functional programming languages do NOT allow us to define: correct answers variables whose value can be modified.
The statement "a function is a first-class object" means that a function correct answers can be placed in a place where a value is expected.
What notation requires parentheses ...
Functional programming languages do NOT allow us to define: correct
answers
variables whose value can be
modified.
The statement "a function is a first-class object" means that a function
correct
can answers
be placed in a place where a value is
expected.
What notation requires parentheses in order to correctly define
the order of
computation? correct answers infix
notation
Convert the following expression into prefix-p notation (a Scheme
statement):
-5 * (2 + 1/2) + 40 correct answers (+ (* (- 5) (+ 2 (/
1 2))) 40)
One of the major differences between the imperative and functional
programming
languages is that the functional programming languages do NOT (in
general!)...
answers havecorrect
side-
effects.
Which of the following is a valid Scheme expression? correct answers (* 9 (/
(- 4 2) 7))
Convert the following expression into prefix-p notation (a Scheme
statement):
10 + (5 - 3) + correct answers (+ 10 (- 5
3) (/ 2 4))
Given an expression: x1 + x2 +
x3 + x4
Which language allows us to evaluate the expression in this order: (1) x1
x2; (3)
plus x4; (2) sum
x3 of ( x1 + x2 ) plus sum of ( x3 + x4 ), without concern for
producingresult
different a than other evaluation orders: correct answers
Scheme
What is the expected result for this expression (in
Scheme)?
(string-ref "Hello World" 4) correct
answers #\o
Which of the following expression will return false (#f)? correct answers
(number? #\7)
Given this procedure, what is the return
result?
(define (guess
value)
(cond ((number? value) "I'm a
number")
((char? value) "I'm a
character")
((integer? value) "I'm a
integer")))
(guess 10) correct answers "I'm a
number"
, Which of the following are typical advantages of using a REPL for
software
development? correct answers They let you interact with a program
after it hasthe environment to understand what is
populated
happening.
They let you experiment with small pieces of code to understand how
they work.
What data structure is used in Scheme for representing extremely large
integers?
correct answers probably a list. Really: we shouldn't know
or care.
The Scheme form (char? #\5) will return correct answers
true (#t)
What statements contain non-functional features of Scheme? Select all
that apply.
correct answers (begin (write
x) x)
(display
x)
What functional feature does the code below best
exhibit?
(define start-engine
(lambda ()
(error-detection (wheel-velocity (wheel-sensor)) (body-velocity))))
correct answers
procedures are first class
objects.
A let-form in Scheme defines a set of correct answers local
names.
A let-form in Scheme is equivalent (in giving names to values) to correct
answers an
unnamed/lambda
procedure.
Given the Scheme code, answer the following
questions.
((lambda
(x)
((lambda (x
(+
y) x
y))
4 (* 6
x)))
3
) The value to be passed to the parameter y
(1)
is 18
(2) . final output of the piece of code is 22 . correct
The
answers (1) 18
(2)
22
Given the Scheme code, answer the following two
questions.
((lambda
(x)
((lambda (x
y) x
(+
y))
5 (* 7
x)))
3
) The value to be passed to the parameter y
(1)
is 21
(2) . final output of the piece of code is 26 . correct
The
answers (1) 21
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