Other operators

not

Mainly used in boolean expressions, it turns TRUE expressions (<> 0) FALSE, and FALSE expressions (== 0) TRUE.

Examples:

(= Result not TRUE) // the result will be FALSE

(= Result not FALSE) // the result will be TRUE

(= Result not 5) // the result will be 0

(= Result not 0) // the result will be 1

neg

Negates integers. If the number is positive, it will become negative. If the number is negative, it will become positive.

Examples:

(= Result neg 10) // the result will be -10

(= Result neg -45) // the result will be 45