Re: Help: Get the value of pi up to 200+ digits?
| From: | Jordan Miller | Date: | Thu, 01 Sep 2005 15:47:33 +0000 |
| Subject: | Re: Help: Get the value of pi up to 200+ digits? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-221694@lists.php.net to get a copy of this message | ||
http://us3.php.net/manual/en/ini.core.php#ini.precision
precision sets the number of significant digits, *NOT* the number of digits displayed after the decimal point.
If you want to get pi out to 16 decimal places you need a precision of *17* because the beginning 3 is a significant digit.
Your code does exactly this, displaying pi with 15 decimal places.
Jordan
On Sep 1, 2005, at 8:06 AM, Wong HoWang wrote:
Dear all, I'm trying to do like this but failed: <?php ini_set('precision',16); echo pi(); ?> How can I get more digits after . ? Can anyone help? Thx! --PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php