You are Here: Home >< Maths

# Help with understanding some mathematical notation Watch

1. a + max(b,0)

max(d, c, 0)

What do the above terms mean?

Thanks
2. If is a set then means the biggest element in . So for example .

So when you see something like it means the "largest positive number out of a,b,c,d, or 0 if they're all negative", and so on.
3. (Original post by nuodai)
If is a set then means the biggest element in . So for example .

So when you see something like it means the "smallest positive number out of a,b,c,d, or 0 if they're all negative", and so on.
Do you mean largest positive number?
4. (Original post by Desert Eagle)
Do you mean largest positive number?
Yup.
5. What if i have:

max(0, -a)

max(-a, 0)

Is there a difference between the two? I don't understand the purpose of the '0'.
6. (Original post by Desert Eagle)
What if i have:

max(0, -a)

max(-a, 0)

Is there a difference between the two? I don't understand the purpose of the '0'.
There is no difference. If a were positive, then -a would be negative and max(-a,0) would be 0. Otherwise max(-a,0) = -a
7. (Original post by SimonM)
There is no difference. If a were positive, then -a would be negative and max(-a,0) would be 0. Otherwise max(-a,0) = -a
Ah ok i see, thanks

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 28, 2010
Today on TSR

### What is the latest you've left an assignment

And actually passed?

### Simply having a wonderful Christmas time...

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.