Math Help Needed

I'm doing some php math and need to divide a floating point number
variable by only 4 decimal places - when I do the following:

$aspect_ratio = 942 / 760;
$new_height = $target_width * $aspect_ratio;

In PHP $aspect_ratio claculates to 1.2394736842105 but for my purposes
I need only 1.2394

How can I limit the decimals to just 4 places?

Thanks...

re: Math Help Needed

On 14-Nov-2003, Ralph Freshour <ralph@primemail.com> wrote:
[color=blue]
> I'm doing some php math and need to divide a floating point number
> variable by only 4 decimal places - when I do the following:
>
> $aspect_ratio = 942 / 760;
> $new_height = $target_width * $aspect_ratio;
>
> In PHP $aspect_ratio claculates to 1.2394736842105 but for my purposes
> I need only 1.2394
>
> How can I limit the decimals to just 4 places?[/color]

lookup round() or number_format()

--
Tom Thackrey
www.creative-light.com
tom (at) creative (dash) light (dot) com
do NOT send email to jamesbutler@willglen.net (it's reserved for spammers)

re: Math Help Needed

round($aspect_rating, 4)

:)

"Ralph Freshour" <ralph@primemail.com> wrote in message
news:uvhbrvs0upfphjpie2gmcq18hk2c00jndc@4ax.com...[color=blue]
> I'm doing some php math and need to divide a floating point number
> variable by only 4 decimal places - when I do the following:
>
> $aspect_ratio = 942 / 760;
> $new_height = $target_width * $aspect_ratio;
>
> In PHP $aspect_ratio claculates to 1.2394736842105 but for my purposes
> I need only 1.2394
>
> How can I limit the decimals to just 4 places?
>
> Thanks...
>[/color]