+
&rest numbers ⇒ sum
number—a number.
sum—a number.
Returns the sum of numbers,
performing any necessary type conversions in the process.
If no numbers are supplied, 0
is returned.
(+) ⇒ 0 (+ 1) ⇒ 1 (+ 31/100 69/100) ⇒ 1 (+ 1/5 0.8) ⇒ 1.0
Might signal type-error if some argument is not a number. Might signal arithmetic-error.
Numeric Operations, Rational Computations, Floating-point Computations, Complex Computations