Re: [PHP] Rounding down?
Hi, Is there a way to round down to the nearest 50? Example: Any number between 400 and 449 I would 400 to be displayed; 450 to 499 would be 450; 500 to 549 would be 500, etc? Off the top of my head: divide the number by 50, run floor() on the result, then times it by 50. 1. 449 / 50 = 9.whatever 2. floor(9.whatever) = 9 3. 9 * 50 = 450 -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding down?
On Sat, 2009-08-22 at 13:00 +0100, Richard Heyes wrote: Hi, Is there a way to round down to the nearest 50? Example: Any number between 400 and 449 I would 400 to be displayed; 450 to 499 would be 450; 500 to 549 would be 500, etc? Off the top of my head: divide the number by 50, run floor() on the result, then times it by 50. 1. 449 / 50 = 9.whatever 2. floor(9.whatever) = 9 3. 9 * 50 = 450 -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org It should be round() and not floor(). 449 / 50 = 8.98 floor(8.98) = 8 8 * 50 = 400 round(8.98) = 9 9 * 50 = 450 Thanks, Ash http://www.ashleysheridan.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding down?
Thanks; Amazing. Ron - Original Message - From: Ashley Sheridan a...@ashleysheridan.co.uk To: Richard Heyes rich...@php.net Cc: Ron Piggott ron@actsministries.org; php-general@lists.php.net Sent: Saturday, August 22, 2009 9:02 AM Subject: Re: [PHP] Rounding down? On Sat, 2009-08-22 at 13:00 +0100, Richard Heyes wrote: Hi, Is there a way to round down to the nearest 50? Example: Any number between 400 and 449 I would 400 to be displayed; 450 to 499 would be 450; 500 to 549 would be 500, etc? Off the top of my head: divide the number by 50, run floor() on the result, then times it by 50. 1. 449 / 50 = 9.whatever 2. floor(9.whatever) = 9 3. 9 * 50 = 450 -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org It should be round() and not floor(). 449 / 50 = 8.98 floor(8.98) = 8 8 * 50 = 400 round(8.98) = 9 9 * 50 = 450 Thanks, Ash http://www.ashleysheridan.co.uk No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.64/2319 - Release Date: 08/22/09 06:06:00 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding down?
I also wrote a function for that, function round_to($number, $increments) { $increments = 1 / $increments; return (round($number * $increments) / $increments); } (Also published on php manual - round() ) On Sat, Aug 22, 2009 at 4:11 PM, Ron Piggott ron@actsministries.orgwrote: Thanks; Amazing. Ron - Original Message - From: Ashley Sheridan a...@ashleysheridan.co.uk To: Richard Heyes rich...@php.net Cc: Ron Piggott ron@actsministries.org; php-general@lists.php.net Sent: Saturday, August 22, 2009 9:02 AM Subject: Re: [PHP] Rounding down? On Sat, 2009-08-22 at 13:00 +0100, Richard Heyes wrote: Hi, Is there a way to round down to the nearest 50? Example: Any number between 400 and 449 I would 400 to be displayed; 450 to 499 would be 450; 500 to 549 would be 500, etc? Off the top of my head: divide the number by 50, run floor() on the result, then times it by 50. 1. 449 / 50 = 9.whatever 2. floor(9.whatever) = 9 3. 9 * 50 = 450 -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org It should be round() and not floor(). 449 / 50 = 8.98 floor(8.98) = 8 8 * 50 = 400 round(8.98) = 9 9 * 50 = 450 Thanks, Ash http://www.ashleysheridan.co.uk No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.64/2319 - Release Date: 08/22/09 06:06:00 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Use ROT26 for best security
Re: [PHP] Rounding down?
Hi, It should be round() and not floor(). 449 / 50 = 8.98 floor(8.98) = 8 8 * 50 = 400 round(8.98) = 9 9 * 50 = 450 Not based on the examples given: Example: Any number between 400 and 449 I would 400 to be displayed -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding down?
Hi, ... A little modification: ?php /** * Rounds down to the nearest 50 */ function myRound($val) { $units = intval(substr($val, -2)); return intval(substr($val, 0, -2) . ($units = 50 ? '50' : '00')); } echo myRound(449) . 'br /'; // 400 echo myRound(450) . 'br /'; // 450 echo myRound(356) . 'br /'; // 350 echo myRound(79) . 'br /'; // 50 ? PS I haven't checked if there's a PHP function for this. -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding down?
On Sat, 22 Aug 2009 14:02:58 +0100, a...@ashleysheridan.co.uk (Ashley Sheridan) wrote: On Sat, 2009-08-22 at 13:00 +0100, Richard Heyes wrote: Hi, Is there a way to round down to the nearest 50? Example: Any number between 400 and 449 I would 400 to be displayed; 450 to 499 would be 450; 500 to 549 would be 500, etc? Off the top of my head: divide the number by 50, run floor() on the result, then times it by 50. 1. 449 / 50 = 9.whatever 2. floor(9.whatever) = 9 3. 9 * 50 = 450 -- Richard Heyes HTML5 graphing: RGraph - www.rgraph.net (updated 8th August) Lots of PHP and Javascript code - http://www.phpguru.org It should be round() and not floor(). 449 / 50 = 8.98 floor(8.98) = 8 8 * 50 = 400 round(8.98) = 9 9 * 50 = 450 Definitely floor or int, not round. Round 0.5-1.499 - 1 Floor 1.0-1.999 - 1 And if you really want to be accurate you should allow for decimal conversion errors in any operation involving floating point numbers. Otherwise you cannot rely on (say) 50 not being represented as 49.99, so that int or floor will give 49. In something like this I usually add half of the precision I want to work to: eg: $answer = 50* (int) (($x +0.5)/50); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding down
Brad Ciszewski wrote: hi everyone, i am looking for a snipplet to round down a number. i was wondering if you could put a negative number in the round() statement to do this, i want it to round down even if its at something.9, as long as its not a whole number, if needs to be rounded down. can anyone help me? http://us4.php.net/floor -- John C. Nichel ÜberGeek KegWorks.com 716.856.9675 [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding down
On November 26, 2004 08:58, Brad Ciszewski wrote: hi everyone, i am looking for a snipplet to round down a number. i was wondering if you could put a negative number in the round() statement to do this, i want it to round down even if its at something.9, as long as its not a whole number, if needs to be rounded down. can anyone help me? Searching on the php.net site in the manual is/can be your friend. You want the floor() function. Take a look at: http://ca3.php.net/manual/en/function.floor.php -- Regards, David Bevan We could learn a lot from crayons: some are sharp, some are pretty, some are dull, some have weird names, and all are different colorsbut they all exist very nicely in the same box. http://www.getanyideas.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding down
Brad Ciszewski wrote: hi everyone, i am looking for a snipplet to round down a number. i was wondering if you could put a negative number in the round() statement to do this, i want it to round down even if its at something.9, as long as its not a whole number, if needs to be rounded down. can anyone help me? floor() -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding average to one decimal point
Hello Adam, Monday, May 10, 2004, 7:03:36 PM, you wrote: AW Hi, I have a randon group of numbers I need the average of. When I add AW them up and divide by how many there are and print the result, I get a AW lot of decimal places. The number comes out to look like 29.3529411765, AW but I don't need that many decimal places. rounding to one decimal place AW will be fine. anyway to trim off the excess decimal values? Try the round() function? :) ceil() and floor() might help if you decide you don't want the extra decimal places too. -- Best regards, Richard Davey http://www.phpcommunity.org/wiki/296.html -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding average to one decimal point
How about round() echo round(1.95583, 2); // 1.96 echo round(1241757, -3); // 1242000 http://www.phpbuilder.com/manual/function.round.php Hi, I have a randon group of numbers I need the average of. When I add them up and divide by how many there are and print the result, I get a lot of decimal places. The number comes out to look like 29.3529411765, but I don't need that many decimal places. rounding to one decimal place will be fine. anyway to trim off the excess decimal values? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding average to one decimal point
On Mon, 10 May 2004, Richard Davey wrote: Hello Adam, Monday, May 10, 2004, 7:03:36 PM, you wrote: AW Hi, I have a randon group of numbers I need the average of. When I add AW them up and divide by how many there are and print the result, I get a AW lot of decimal places. The number comes out to look like 29.3529411765, AW but I don't need that many decimal places. rounding to one decimal place AW will be fine. anyway to trim off the excess decimal values? Try the round() function? :) ceil() and floor() might help if you decide you don't want the extra decimal places too. i didn't know about round(), guess i should check php.net/round next time ;) thanks! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding issue
$x = 4.5012412; echo round($x, 2); // results in 4.5 --- however I want 4.50! I want 2 decimal places! echo number_format ( round ($x, 2), 2); Larry -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding issue
* Thus wrote Kevin Ison ([EMAIL PROTECTED]): I need to know if there is a work around for the following scenerio... $x = 4.5012412; echo round($x, 2); // results in 4.5 --- however I want 4.50! I want 2 decimal places! Is there a way to keep the zero from being dropped? I have not been able to get the zero to stay there ... I realize this is the interpreters problem but I need the zero. number_format(round($x, 2),2); you can always control with printf functions, but number format is designed specifically for that. Curt -- I used to think I was indecisive, but now I'm not so sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding issue
ahhh ok thanks guys!! That worked ... I knew it was something but I could not remember which function... thanks again! Larry E . Ullman [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] $x = 4.5012412; echo round($x, 2); // results in 4.5 --- however I want 4.50! I want 2 decimal places! echo number_format ( round ($x, 2), 2); Larry -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding issue
ahhh ok thanks guys!! That worked ... I knew it was something but I could not remember which function... thanks again! Curt Zirzow [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] * Thus wrote Kevin Ison ([EMAIL PROTECTED]): I need to know if there is a work around for the following scenerio... $x = 4.5012412; echo round($x, 2); // results in 4.5 --- however I want 4.50! I want 2 decimal places! Is there a way to keep the zero from being dropped? I have not been able to get the zero to stay there ... I realize this is the interpreters problem but I need the zero. number_format(round($x, 2),2); you can always control with printf functions, but number format is designed specifically for that. Curt -- I used to think I was indecisive, but now I'm not so sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: PHP Rounding Time
I haven't quite thought this through, but I think something like this: $remainder = $ts % 60; if( $remainder 15 ) { $ts = $ts - $remainder; }else if( $remainder 15 $remainder 30 ) { $ts = $ts + (30 - $remainder); }else if( $remainder 30 $remainder 45 ) { $ts = $ts - ($remainder - 30); }else if( $remainder = 45 ) { $ts = $ts + (60 - $remainder); } something close to that I think... On Fri, 4 Apr 2003, Jay Fitzgerald wrote: I apologize in advance for my constant nub questions.. How can I round the current time up or down to the nearest 1/2 hour? eg: timeranges: 0900 through 0915 == 0900 0916 through 0930 == 0930 0931 through 0945 == 0930 0946 through 1000 == 1000 Jay Fitzgerald, Design Director Bayou Internet - http://www.bayou.com Toll Free: 888.30.BAYOU (22968) Vox: 318.338.2034 / Fax: 318.338.2506 E-Mail: [EMAIL PROTECTED] ICQ: 38823829 / AIM: bayoujf / MSN: bayoujf / Yahoo: bayoujf -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding
At 22:17 20.02.2003, Van Andel, Robbert spoke out and said: [snip] How do I round a number to the nearest 10 or even 5. Say I have a number like 12. Is there an easy way to round that up to 15 or 20? [snip] function round_to($number, $full, $isup=true) { $factor = $number % $full; if ($isup) { if ($factor) $factor = $full - $factor; $result = $number + ($factor ? $factor : 0); } else $result = $number - $factor; return $result; } $x = 12; $to = 5; echo $x = , round_to($x, $to), \n, $x = , round_to($x, $to, false); -- O Ernest E. Vogelsinger (\) ICQ #13394035 ^ http://www.vogelsinger.at/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding
On Friday 21 February 2003 05:17, Van Andel, Robbert wrote: How do I round a number to the nearest 10 or even 5. Say I have a number like 12. Is there an easy way to round that up to 15 or 20? To round to the nearest 5: Divide by 5 Round to the nearest integer Multiply by 5 I'll leave you to work out how to round to nearest 10. -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- /* Man belongs wherever he wants to go. -- Wernher von Braun */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding
At 2/21/2003 05:29 AM, Jason Wong wrote: To round to the nearest 5: Divide by 5 Round to the nearest integer Multiply by 5 Modulus by 5 Subtract the result from the original number. Of course, my way depends on whether you're rounding up or down. -- S. Keller UI Engineer The Health TV Channel, Inc. (a non - profit organization) 3820 Lake Otis Pkwy. Anchorage, AK 99508 907.770.6200 ext.220 907.336.6205 (fax) Email: [EMAIL PROTECTED] Web: www.healthtvchannel.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding...sort of
On Saturday 28 December 2002 17:49, Peter Lavender wrote: Hi everyone, I have a nubmer: 4.1 but I only want the whole number 4, even if it's 4.9, so this rules out using round (Unless I missed a parameter). How could I do this.. I'm drawing a blank... floor() -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* Remark of Dr. Baldwin's concerning upstarts: We don't care to eat toadstools that think they are truffles. -- Mark Twain, Pudd'nhead Wilson's Calendar */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding...sort of
php.net/floor OR ? list($w,$d) = split('.','4.9'); echo $w; ? Justin French on 28/12/02 8:49 PM, Peter Lavender ([EMAIL PROTECTED]) wrote: Hi everyone, I have a nubmer: 4.1 but I only want the whole number 4, even if it's 4.9, so this rules out using round (Unless I missed a parameter). How could I do this.. I'm drawing a blank... Pete -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding...sort of
Use explode() please On Sun, 29 Dec 2002, Justin French wrote: php.net/floor OR ? list($w,$d) = split('.','4.9'); echo $w; ? Justin French on 28/12/02 8:49 PM, Peter Lavender ([EMAIL PROTECTED]) wrote: Hi everyone, I have a nubmer: 4.1 but I only want the whole number 4, even if it's 4.9, so this rules out using round (Unless I missed a parameter). How could I do this.. I'm drawing a blank... Pete -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding a number
Jason Wong wrote: On Monday 24 June 2002 11:34, Phil Schwarzmann wrote: I want to round a number to the nearest decimal place... if the number is 4.623, I want it to display 4.6 if the number is 2.36, I want it to display 2.7 You don't really mean 2.36 -- 2.7 ?? Is there a function that does this? round(), ceil(), floor() don't do this and I've checked through all the math functions in my handy-dandy PHP Functions reference book. round() seems to work. What's the problem you're having? It's worth noting that round doesn't always work e.g. try round(0.35,1) -- Jason Wong - Gremlins Associates - www.gremlins.com.hk Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* That's no moon... -- Obi-wan Kenobi */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding a number
seems to work fine for me. what are your results when you do this? mine are 0.4 and this is what is should be. if it were .349 it would round down. isn't this how it should work? What were your results? Jim Lucas - Original Message - From: George Whiffen [EMAIL PROTECTED] To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Monday, June 24, 2002 2:36 AM Subject: Re: [PHP] rounding a number Jason Wong wrote: On Monday 24 June 2002 11:34, Phil Schwarzmann wrote: I want to round a number to the nearest decimal place... if the number is 4.623, I want it to display 4.6 if the number is 2.36, I want it to display 2.7 You don't really mean 2.36 -- 2.7 ?? Is there a function that does this? round(), ceil(), floor() don't do this and I've checked through all the math functions in my handy-dandy PHP Functions reference book. round() seems to work. What's the problem you're having? It's worth noting that round doesn't always work e.g. try round(0.35,1) -- Jason Wong - Gremlins Associates - www.gremlins.com.hk Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* That's no moon... -- Obi-wan Kenobi */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding a number
On Tuesday 25 June 2002 02:16, Jim lucas wrote: seems to work fine for me. what are your results when you do this? mine are 0.4 and this is what is should be. if it were .349 it would round down. isn't this how it should work? What were your results? try round(0.35,1) I get 0.3 on php 4.0.6. -- Jason Wong - Gremlins Associates - www.gremlins.com.hk Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* Elegance and truth are inversely related. -- Becker's Razor */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] rounding a number
according to the pdf version of the manual I have, round() is what you need float round(float val[, int precision]) have another look that the man page -Original Message- From: Phil Schwarzmann [mailto:[EMAIL PROTECTED]] Sent: Monday, June 24, 2002 1:35 PM To: [EMAIL PROTECTED] Subject: [PHP] rounding a number I want to round a number to the nearest decimal place... if the number is 4.623, I want it to display 4.6 if the number is 2.36, I want it to display 2.7 Is there a function that does this? round(), ceil(), floor() don't do this and I've checked through all the math functions in my handy-dandy PHP Functions reference book. Thanks for your help!!! Or..if it's too hard to do that, I could just use a function that chops off the end of some decimals, like... if the number is 2.343234, I want just 2.3 or if the number is 2.545434534534534534, I want just 2.5 Thanks!! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] rounding a number
I think what you're looking for is number_format() - you can set decimal places with it and used in combo with round(), ceil(), and/or floor(), you should be able to achieved the desired result. http://www.php.net/manual/en/function.number-format.php HTH, Jason Soza -Original Message- From: Phil Schwarzmann [mailto:[EMAIL PROTECTED]] Sent: Sunday, June 23, 2002 7:35 PM To: [EMAIL PROTECTED] Subject: [PHP] rounding a number I want to round a number to the nearest decimal place... if the number is 4.623, I want it to display 4.6 if the number is 2.36, I want it to display 2.7 Is there a function that does this? round(), ceil(), floor() don't do this and I've checked through all the math functions in my handy-dandy PHP Functions reference book. Thanks for your help!!! Or..if it's too hard to do that, I could just use a function that chops off the end of some decimals, like... if the number is 2.343234, I want just 2.3 or if the number is 2.545434534534534534, I want just 2.5 Thanks!! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] rounding a number
On Monday 24 June 2002 11:34, Phil Schwarzmann wrote: I want to round a number to the nearest decimal place... if the number is 4.623, I want it to display 4.6 if the number is 2.36, I want it to display 2.7 You don't really mean 2.36 -- 2.7 ?? Is there a function that does this? round(), ceil(), floor() don't do this and I've checked through all the math functions in my handy-dandy PHP Functions reference book. round() seems to work. What's the problem you're having? -- Jason Wong - Gremlins Associates - www.gremlins.com.hk Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* That's no moon... -- Obi-wan Kenobi */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding....
I guess that's because nobody knows beforehand which direction the fuzz should go - should it go a little upwards or a little downwards in order to match all systems? Just my two cents. Bogdan Matthew Clark wrote: Seeing as the mathematically correct way to round numbers is to round down to n for n-1=m=n.5 and up to n+1 for n.5mn+1, I wonder why the PHP round() function couldn't include a little 'fuzz' to handle the rounding problems we encounter due to floating point representation in the hardware? It could even be a configurable option - but it would save writing a wrapper... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Rounding a number up
http://www.php.net/manual/en/function.ceil.php - Original Message - From: Brandon Orther [EMAIL PROTECTED] To: PHP User Group [EMAIL PROTECTED] Sent: Monday, September 10, 2001 2:19 PM Subject: [PHP] Rounding a number up Is there a way to round a number to the next whole number? Example: Before: 1.86758 After: 2 Thank you, -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] rounding up
What is the best seamless way to upgrade/update PHP? Joseph -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] rounding up
Hi Is there a PHP command to round up to the nearest integer? www.php.net/ceil www.php.net/round HTH M@ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] rounding up
Is there a PHP command to round up to the nearest integer? www.php.net/ceil www.php.net/round These are the correct functions, but take great care in reading the user contributed notes in the round function concerning x.5 rounding randomness. Sometimes this can get you. If you want to be sure 4.5 always rounds to 5, add a fudge factor smaller than your precision, but larger than the precision of the computer. $value = 4.5; $fudge = 0.001; round($value) sometimes returns 5 round($value) sometimes returns 4 $fudgedvalue = $value + $fudge; round($fudgedvalue) = 5 This comes into play often when you do things like split a long list of items into two columns on your web page and you use PHP (or any language) to figure out where to end the first column and start the second. It should be noted that this is not a PHP issue. It affects any language which relies on the hardware to compute. Fun stuff eh? John -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Rounding to strange results
Is there a comma in one thousand, e.g., 1,000.00? round() will truncate everything to the right of a comma. Kirk -Original Message- From: Martin E. Koss [mailto:[EMAIL PROTECTED]] Sent: Tuesday, March 06, 2001 7:45 AM To: [EMAIL PROTECTED] Subject: [PHP] Rounding to strange results Hi, I use a product database for 2 sites, one of which adds sales tax and rounds to the nearest .10 and on the other site there is no tax and also no rounding. I am unable to figure out why a price of 1000.00 is being displayed as 1.00 and any price over 1000 does the same thing. 100.00 works fine, as does all other prices, this is the same with and without rounding. Anything I should look for to solve this problem? Martin. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Rounding to strange results
You can write a function that get the %(mod) of 1000 then subtracts it from the number. Rick At 08:43 AM 3/6/01 -0700, Johnson, Kirk wrote: Is there a comma in one thousand, e.g., 1,000.00? round() will truncate everything to the right of a comma. Kirk -Original Message- From: Martin E. Koss [mailto:[EMAIL PROTECTED]] Sent: Tuesday, March 06, 2001 7:45 AM To: [EMAIL PROTECTED] Subject: [PHP] Rounding to strange results Hi, I use a product database for 2 sites, one of which adds sales tax and rounds to the nearest .10 and on the other site there is no tax and also no rounding. I am unable to figure out why a price of 1000.00 is being displayed as 1.00 and any price over 1000 does the same thing. 100.00 works fine, as does all other prices, this is the same with and without rounding. Anything I should look for to solve this problem? Martin. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] ## # Rick St Jean, # [EMAIL PROTECTED] # President of Design Shark, # http://www.designshark.com/ # Quick Contact: http://www.designshark.com/messaging.ihtml # Tel: 905-684-2952 ## -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Rounding a number up if the number is anything more thana whole number
On Mon, 17 Jan 2000, Brandon Orther wrote: Hello, I am doing a math function where I divide one number by another. I want it to give me a whole number though, and if it is anything above a number I want it to go to the next one up. Example: 4.0001 would equal 5 3.98 would equal 4 11.023 would equal 12 I hope you understand what I am trying to say. Thank you, Brandon Orther WebIntellects Design/Development Manager [EMAIL PROTECTED] 800-994-6364 www.webintellects.com ceil() -- Ignacio Vazquez-Abrams [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]