Trying to understand this lambda expression in scheme -


can please expression:

((lambda (a b) (* ***(b a)*** a)) 5 (lambda (c) (+ c (* 2 c))))

now understand expression = 75 , understand first lambda takes arguments , b = 5 , b = (lambda (c) (+ c (* 2 c))) = 15 part of expression don't understand part have put in bold , italics. in basic terms how expression read?

this snippet:

(b a)

expresses fact b function, , it's being applied a parameter. in particular, value of a 5, , value of b function:

(lambda (c) (+ c (* 2 c)))

so, replacing obtain:

(* (b a) a) (* ((lambda (c) (+ c (* 2 c))) 5) 5) (* (+ 5 (* 2 5)) 5) 75

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