What does the built-in function 'abs()' used for?

Answer 1

returns distance from origin(0)

Answer 2

Returns absolute value of the number.

Answer 3

abs(5) == 5
abs(-5) == 5
absolute value is a numerical distance between zero and a given number

Answer 4

what did you mean by 'absolute value'?
sorry i'm arabian & my english is not good

Answer 5

thank you