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### Floor and Ceiling

```
Date: 05/28/2000 at 19:28:14
From: Veena
Subject: Discrete Maths

What do 'floor' and 'ceiling' mean in mathematics?
```

```
Date: 05/29/2000 at 19:49:14
From: Doctor Schwa
Subject: Re: Discrete Maths

Floor means round down to the lower integer; ceiling means round up.
For example,

floor(2.5) = 2, floor(-2.5) = -3, floor(2) = 2, floor(-2) = -2
ceil(2.5) = 3,  ceil(-2.5) = -2,  ceil(2) = 2,  ceil(-2) = -2

- Doctor Schwa, The Math Forum
http://mathforum.org/dr.math/
```
Associated Topics:
High School Discrete Mathematics
High School Number Theory

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