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(abs number)


Specify that number's distance from 0 (zero), disregarding direction (positive or negative).


This function returns the absolute value of the number. You can use a real number or an integer. This function takes exactly one argument.

Examples

Code Returns
(abs 56) 56
(abs -2.3) 2.30000
(abs -49) 49

NOTES

    • Use this function to convert a negative number to a positive number, or to ensure the number is positive.
    • When you need to make sure a number is negative, first apply the abs function, and then subtract the number from 0.

(fix number)

(float number)

(minusp number)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language

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