Always round to the next value

[NateBro]

i want to round 1.2 to 2. and 1.5 to 2.

if the number is a decimal always round it to the next whole number.

how would i do this?

thanks you for your time

 

[audiopro]

The syntax would depend on what the native language you are using but simply add 1 to the value and take the INT value of it.


Keith

http://www.studiosoft.co.uk

 

[NateBro]

hmmmmm....

i don't think i know how to do that "int()", could you give an example of what that would look like?


thanks,

Nate_Bro

 

[NateBro]

ok sorry i got ya, $end_page = int($end_page + 1);

thank you

 

[audiopro]

You're welcome.


Keith

http://www.studiosoft.co.uk

 

[ishnid]

Or you could use the ceil() function in the standard POSIX module:

use POSIX;
$end_pge = POSIX::ceil( $end_page );

 

[ishnid]

Sorry for the double-post - hit submit too early.
POSIX::ceil is recommended above using int - see the entry for int() in perlfunc for more.

 

[NateBro]

oh ok, cool thanks

 

[audiopro]

I suppose you should add 0.9 to the value rather than 1.
If the var starts as a full integer the result will be 1 more than it should be.

Keith

http://www.studiosoft.co.uk

 

[audiopro]

The use of INT in this case is acceptable as you want it to round down to the integer number.
To use INT as a true rounding function - add 0.49 to the value.
This is a work round as POSIX::ceil is not always available.

Keith

http://www.studiosoft.co.uk

 

[NateBro]

audiopro (Programmer) 30 Apr 05 8:55
The use of INT in this case is acceptable as you want it to round down to the integer number.
To use INT as a true rounding function - add 0.49 to the value.

will it still come out as a whole number then or a decimal?

 

[audiopro]

3.3 + 0.49 = 3.79
INT(3.79) = 3

3.7 +0.49 = 4.19
INT(4.19) = 4

if the decimal > 0.5 It is rounded up.
if the decimal <=0.5 It is rounded down.

We are using INT to simply chop the decimal point and the decimal digits off the end of the number as if we were manipulating a string.


Keith

http://www.studiosoft.co.uk

 

[NateBro]

Oh ok i got ya.

Thanks