SICP-1.3.2节练习
练习 1.34
练习 1.34：
Suppose we define the procedure (define (f g) (g 2)) Then we have (f square) 4 (f (lambda (z) (* z (+ z 1)))) 6 What happens if we (perversely) ask the interpreter to evaluate the combination (f f)? Explain.
我的解答：
运行 (f f) 将会提示类型错误，如下： scheme@(guile-user)> (f f) Error: Wrong type to apply: 2 调用流程为： (f f) (f 2) (2 2) ; 此处第一个 2 不是函数，报错 Error: Wrong type to apply: 2
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