Subtract 1 from the number.
This function subtracts 1 from the number. You can use a real number or an integer. This function takes exactly one argument.
Examples
| This expression | Returns |
|---|---|
| (1- 8) | 7 |
| (1- 9.75) | 8.75000 |
| (1- -18) | -19 |
NOTE This function is useful as an decrement counter.
Tell me about...
(setq symbol1 statement1 [symbol2 statement2] ...)
Programming Overview of LISP (LISt Processing) Language
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