Re: Help: Get the value of pi up to 200+ digits?
| From: | Jordan Miller | Date: | Thu, 01 Sep 2005 16:17:56 +0000 |
| Subject: | Re: Help: Get the value of pi up to 200+ digits? | ||
| References: | 1 2 3 | Groups: | php.db |
| Request: | Send a blank email to php-db+get-40196@lists.php.net to get a copy of this message | ||
strange, with your code, mine cuts out at 49 significant digits:
3.141592653589793115997963468544185161590576171875
it must be a system-specific limitation.
we need more information on what you are trying to do, *exactly*. be as detailed and specific as possible.
On Sep 1, 2005, at 10:57 AM, Wong HoWang wrote:
Dear Jordan, I know what you mean. But you may try this one and you will know: <?php ini_set('precision',200); echo pi(); ?> the result is the same as 16!!! So that's why I ask this question! I am not stupid like that! Please help, thx! "Jordan Miller" <jmil@hymiegladstone.com> wrote:534D8D52-751D-45B6-9B49-DD9FA136C727@hymiegladstone.com...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:--PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.phpDear 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