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# What does |x| mean? watch

1. Howdy .

What is it called when a variable is in between two lines.

For example: |x|

Also, what does it mean?

Thanks
2. Absolute value of x

Value in between the |...| is always positive

E.g. |-3|= 3

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3. (Original post by makin)
Howdy .

What is it called when a variable is in between two lines.

For example: |x|

Also, what does it mean?

Thanks
It's the modulus function. It gives the absolute value of a function (if x>0 |x|=x, if x<0 |x|=-x)
4. (Original post by makin)
Howdy .

What is it called when a variable is in between two lines.

For example: |x|

Also, what does it mean?

Thanks
It means absolute value.
https://www.mathsisfun.com/numbers/absolute-value.html
5. Modulus function has been applied

It makes any negative number positive.

E.g. |-5| = 5

So |x|, or mod x, is definitely a positive value
6. (Original post by LeapingLucy)
Modulus function has been applied

It makes any negative number positive.

E.g. |-5| = 5

So |x|, or mod x, is definitely a positive value
(Original post by an_atheist)
It's the modulus function. It gives the absolute value of a function (if x>0 |x|=x, if x<0 |x|=-x)
7. (Original post by an_atheist)
It's the modulus function. It gives the absolute value of a function (if x>0 |x|=x, if x<0 |x|=-x)
8. (Original post by B_9710)
You get 0.
9. (Original post by an_atheist)
You get 0.
I know, I was being pedantic because you didn't define it.
10. The absolute value is The correct term yea it's not just The negative made positive incase The question asks for The absolute value And not |x|
11. It is used to define the "determinant of x".
12. Its the mod function
if any negative value for e.g l -2 l this will ALWAYS come out positive
13. many calculators have the Abs function which does the same thing

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