/ returns the quotient of dividing all arguments. Arguments must evaluate to
numeric values. div is an alias for this function.
To prevent ambiguity, this function always performs floating point divisions, regardless if all its arguments are integer numbers.
(/ 9 3 2)➜1.5((9.0 / 3.0) / 2.0)(/ 1 0)➜ invalid: division by zero
expris 1 or more expressions
/ evaluates each of the given expressions in sequence. If an expression returns
an error, / returns that error and stops evaluating further expressions.
The first value is taken as the dividend, every further value is then used as a divisor. The final result is then returned.
/ uses one scope per expression, so nothing is shared (like variables) between
expressions, and nothing is leaking out.