Making choices with the conditional expression LISP provides a control structure called the conditional expression that works like an if statement in C++. It tests a condition and runs either a consequent expression or an alternative expression, depending on the truth value of the condition. The entire conditional expression then returns the value of the consequent or the alternative expression. Type the following conditional expression at the interpreter's prompt: (if (> 4 3) 4 3) What value is returned? Now we'll define a function that solves a general problem, finding the maximum of two numbers, using the following conditional expression: (define (maximum x y) (if (> x y)

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Making choices with the conditional expression
LISP provides a control structure called the conditional expression that works like an if statement in C++. It tests a condition and
runs either a consequent expression or an alternative expression, depending on the truth value of the condition. The entire
conditional expression then returns the value of the consequent or the alternative expression.
Type the following conditional expression at the interpreter's prompt:
|(if (> 4 3)
4
3)
What value is returned?
Now we'll define a function that solves a general problem, finding the maximum of two numbers, using the following conditional
expression:
|(define (maximum x y)
(if (> x y)
y))
Test this function with several pairs of numbers.
Transcribed Image Text:Making choices with the conditional expression LISP provides a control structure called the conditional expression that works like an if statement in C++. It tests a condition and runs either a consequent expression or an alternative expression, depending on the truth value of the condition. The entire conditional expression then returns the value of the consequent or the alternative expression. Type the following conditional expression at the interpreter's prompt: |(if (> 4 3) 4 3) What value is returned? Now we'll define a function that solves a general problem, finding the maximum of two numbers, using the following conditional expression: |(define (maximum x y) (if (> x y) y)) Test this function with several pairs of numbers.
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