abs

From the SETL Wiki

abs
Category	math
Syntax	prefix
Compatibility
CIMS SETL	yes
SETL-S	yes
SETL2	yes
GNU SETL	yes

Contents 1 Purpose 2 Synopsis 3 Description 4 Examples 5 Notes

Purpose

Absolute value of number, character code

Synopsis

 abs x

Description

• If x is an integer or real number, returns its absolute value.
• If x is a string, returns the numeric code of the initial character.

Examples

1. abs 1
   

   Result: 1

2. abs -42
   

   Result: 1

3. abs 'a'
   

   Result: 65

Notes

• All implementations currently use ASCII or ISO-8859-1 as the default (and only) character encoding.