Exercise 2.4.3: (back)

Q. (+ 5 (/ 1 0))
/: division by zero

A. Divide by Zero error.


Q. (sin 10 20)
sin: expects 1 argument, given 2: 10 20

A. sin only accepts 1 argument.


Q. (somef 10)
reference to undefined identifier: somef

A. The definition somef has not been declared.