12.2.25 + [Function]

+ &rest numbers => sum

Arguments and Values::

number—a number.

sum—a number.

Description::

Returns the sum of numbers, performing any necessary type conversions in the process. If no numbers are supplied, 0 is returned.

Examples::

      (+) =>  0
      (+ 1) =>  1
      (+ 31/100 69/100) =>  1
      (+ 1/5 0.8) =>  1.0

Exceptional Situations::

Might signal type-error if some argument is not a number. Might signal arithmetic-error.

See Also::

Numeric Operations, Rational Computations, Floating-point Computations, Complex Computations