+ -- r7rs Definition

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Kind

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procedure;

Implemented by

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• + (from vonuvoli);

Procedure signature

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Procedure variants:

• (() -> ((&constant 0)))
  • inputs: none;
  • output: a constant with value 0;
• (((z number-not-nan)) -> ((z number-not-nan)))
  • input: z of type number-not-nan;
  • output: z of type number-not-nan;
• ((number-not-nan |2...|) -> (number))
  • inputs:
    • a value of type number-not-nan;
    • ... -- at least 2 times;
  • output: a value of type number;
• ((number |1...|) -> (number-nan))
  • inputs:
    • a value of type number;
    • ... -- at least one time;
  • output: a value of type number-nan;

Exports

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• scheme:base -- (scheme base);

Exports recursive

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• scheme -- (scheme);

Description

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(+ z_1 ...)
(* z_1 ...)

These procedures return the sum or product of their arguments.

(+ 3 4)                 ===>  7
(+ 3)                   ===>  3
(+)                     ===>  0
(* 4)                   ===>  4
(*)                     ===>  1

---

The text herein was sourced and adapted as described in the "R7RS attribution of various text snippets" appendix.

Referenced-types

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• number-not-nan;
• number;
• number-nan;