# Rounding Off Numbers

Jul 20, 2005

Is there a script that will round off a number to a certain number of
decimal places?

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## Rounding ...

Nov 9, 2003

I have to round a fractional value from a form input to either 0, 25, 50 or 75. I have succesfully tested the value and stripped the decimal place. If the value is for example .1, I round it to 0. If the value is say .2, I round it to .25. My problem is that when the value is > .75, my function is returning undefined. For the sake of brevity I will include only the relevant code.

var increments = new Array(0,25,50,75);

CharBefore = parseFloat(CharBefore); //the whole number
CharAfter = parseFloat(CharAfter); //the decimal

var x = parseFloat(increments.length - 1) ;

for ( i = 0; i <= x ; i++ ) {

var testValue = parseFloat(increments[i]);
if (CharAfter > testValue) { continue ; }
else {
var lowerValue = parseFloat(increments[i-1]);
if ((CharAfter > testValue) && (i==x)) {

median = (testValue + 100)/2 ;
if (CharAfter >= median) {
CharAfter = Ɔ'
CharBefore++;} //round up to next whole number
else { CharAfter = testValue; }

}
else {
median = (testValue + lowerValue)/2 ;
if (CharAfter >= median) { CharAfter = testValue; }
else { CharAfter = lowerValue; }

}
return CharBefore + '.' + CharAfter;
break;

}

} // End for loop

## Rounding A Number

Jul 23, 2005

i have some file size in bytes, and i want to get it in KB or MB, with
one decimal digit, for example:1268777 -> 1.2 MB

now i can have 1.210000... my question is how do you can round this number properly, if i use Math.round(number), i only get 1 MB

## Rounding Inputs Up

Sep 27, 2007

The inputs for the fields of mth6, mth12, mth18, mth24, set50, set75, set 80 and set85.

I would like a way for it to round up to the nearest tenth.

IE:

from 2571 to 2580

from 148 to 150

ect.

any suggestions? Code:

## Rounding Off Percentage Values

Oct 27, 2010

I have a problem in my code which is as follows:

Code:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>

[code]....

My problem here is that I am calculating the percentage values of a whole number and storing those values in text boxes respectively through javascript function.Now,what I need is that I want to round all the values to integer value such that the sum of integer values is equal to the final value.

## Rounding Returned Value From Jquery.css

Sep 7, 2011

So just found out the problem I was having, and came up with a solution (bandaid really) but would like to know if anyone else has run into this and what they did.

Code JavaScript:
var left_margin = \$(this).css('margin-left').replace(/D/g,'');

So the above, get the left margin of the object, strip all but numbers and store into a variable. Easy, right? Here's what happened. Inserted the object into the DOM, Chrome returned 212px, which was converted to 212�*fine. Firefox on the other hand returned 212.5px, which was converted to 2125� not fine. I'm centering the element on the screen based on this number, so the additional 2000ish pixels is WAY off. My solution was to increase one of my initial values a single pixel in which both browsers return 213px�*but like I said this is only a bandaid solution. Not really understanding the value of .5 pixel, but looking into that. Is there a rounding function in jquery? Javascript I would have to strip the px from the string, convert to integer and THEN round.

## Can't Rounding Off Percentage Values

Oct 27, 2010

I have a problem in my code which is as follows:

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>

[code]....

My problem here is that I am calculating the percentage values of a whole number and storing those values in text boxes respectively through javascript function.Now,what I need is that I want to round all the values to integer value such that the sum of integer values is equal to the final value.

## Rounding To Nearest 5th Number

Apr 26, 2011

I need help with figuring out how to round to the nearest 5th number.For example, if I had a variable with the value of 42, how can I round that up to 45; another example being 37 to 40.

## JQuery :: State Of The Art For Corner Rounding?

May 1, 2009

I have a half dozen bookmarks for rounded corner plugins, but am wondering if there's a "state of the art" plugin kicking any booty on that these days? What I'd *really* like is to just be able to set -moz border radiuses in CSS and have a plugin magically use those to create rounded corners in IE and Safari (IE mainly... using excanvas or something with it is fine, too).

## Rounding Figure And Have Only 3 Digits After Decimal Points

Nov 8, 2009

Suppose I do (5 * 0.039) + 0.59, then the result is 0.7849999999999999 - but I want to round it upwards and should have only 3 digits after decimal point. I found out that using toFixed(3) will get it to be 0.785, but the problem is that it add x.x00 for some numbers where there aren't much decimal numbers. Is there a way I can remove the 0's?

## Resolved Retrieve Number From A Form Input And Return It After Rounding?

Apr 10, 2009

I have a order form that adds up all the input boxes (45) and then totals them using function updatePrice() (which works) Im trying to have the output as XX.XX and cant figure out how to get the number from the id=txtTotal into the function round() and return the formatted number to txtTotal.

[Code]...

## Include Numbers And Alphabets Instead Of Numbers Only?

Apr 7, 2009

I need to modify the script showed at: [URL]

Right now it allows entering "numbers only", I need it so that it allows numbers and alphabets only, no special characters or spaces.

And yes, one more question, does the first part of the code need to be added in the <head> of the document or <body> ?

The code at the above URL is as follows:

<script type="text/javascript">
// initialise variable to save cc input string
var cc_number_saved = "";
</script>

[Code].....

## JS And Numbers

Nov 26, 2004

I am writing a script and everything works fine, except when I calculate my figure i want to display only 2 decimal points.

ie. 10 = 10.00
ie. 10.56789 = 10.56

I have no idea on how to do this and I cannot use Cold Fusion.

Is there a built in JS Function?

## Strings And Numbers...?

Feb 3, 2006

I'm having difficulties arithmetically manipulating form element values.

I've entered data into the form, and I fetch them using a js, as:

p7Left = Number(document.form1.elements["p7_left"].value);
p7Right = Number(document.form1.elements["p7_right"].value);
...
...
scoreLeft = Number(document.form1.elements["left_score"].value);
scoreRight = Number(document.form1.elements["right_score"].value);

Then I add these as follows:

scoreLeft = Number(scoreLeft + p&Left + ...... +);

This does what I want; without the operator 'Number' I get a concatination
of the various variables (as expected). Is there some way of globally
defining all variables as numbers instead of strings?

## Row Numbers In Firefox

Mar 11, 2006

How do I find the row & column number of the table for a checkbox on
its Onclick event

The following HTML sample works perfect in IE. On click of the
checkboxes, I am displaying the row number and its column number. How
do I manage the same in Firefox? Code:

## JQuery :: Way To Sum Numbers

Aug 5, 2010

How to sum numbers for example:

29.90 and 10.20?

It should be 40.10 but jquery returns 40.099999999999994

My code...

## Spinner To Contain Numbers Only?

Nov 11, 2011

I have create a spinnrer (numeric up and down field) in my form. Below is the code for it:

Code:
<form action="create_session.php" method="post" name="createsession"> <!-- This will post the form to its own page"-->
<table cellpadding="0" cellspacing="0" border="0">
<tr>[code]............

Now what my question is how can I get the spinner to only allow numbers to be inputted in the spinner and not letters. Also how can I get it to only allow 2 digits to be entered in the spinner?. I know it will require an if statement but I don't know how to do it.

## Add Two Numbers Using Do While Loop?

Sep 15, 2010

i'm trying to achieve is to add two numbers using do while loop. below is the code however result wont show up. i cant seem to determine the error.

<script = "text/javascript">
function myanswer(x,y){
x=parseInt(x);

[code].....

## How To Display The Sum Of The 20 Numbers

Sep 20, 2010

iwant to ask on how to display the sum of the 20 numbers i allready get the everage but i want to display the sum together of the everage this my code..

<html>
<body>
<script type = "text/javascript">

[code]....

## Sorting Numbers

Jun 13, 2007

I am tring to sort some six numbers..the problem is that it doesnt work when
I use "document.getElementById" instead of "document.write()
my program is supposed to write six numbers every second..line by line
Could you get it work ?

<html>
<body>
<script>
setInterval("sortN()",1000);

function sortN()
{
for(var m=1;m<=6;m++)
{
arr[m] = Math.floor(Math.random()*49)+1;
document.getElementById("kut").innerHTML+=arr.sort(sortN)+".."+"<br>";
} }
</script>
<div id="kut"></div>
<input type="button" value="baslat"onclick="sortN()">
</body>
</html>

## Only Numbers - Critical

Sep 18, 2006

Somebody can help me with a function about "only number"?

I need to find a function that doesn't allows the user informs numbers.

## Using Cookies To Add Numbers?

Feb 5, 2010

I'm trying to write a Javascript program that adds numbers by using cookies. Here is my code:

<!DOCTYPE html PUBLIC "-W3CDTD XHTML 1.0 TransitionalEN" "http:www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http:www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

[Code]...

## Sum Of 10 Random Numbers?

Oct 12, 2010

I'm using a forLoop to generate 10 random numbers, how would I go about added them all together? code...

## Join Two Numbers Together?

May 4, 2009

How can you join two numbers together in javascript, like you would join two strings?For example, if you have two variables, with 1 stored in each, how can I join them together, so I get 11, instead of 2?

## Numbers In A Form

Aug 31, 2003

Another quick question. I have the script to add each field up I need, but if the ending 0 after a decimal is present it doesnt show. How do I keep the leading zero and how do I keep just 2 digits after the decimal?

For example:

1 + 1.50 = 2.50

But javascript displays it as 2.5

Now sometimes when I do math I get:

2.3454545

In this case I just want 2.34. So if there is a ending zero I want to keep it, and if there is more than 2 numbers after the decimal I want to cut the rest off and leave the 2 there.

## Only Allowing Numbers

Jul 24, 2006

iw ant to have a function so that user can only enter numbers in the text box and + ( only once in the beggininging). if user wants to add + he can only enter + once as the first character like +123 or 123 bt cannot enter 1+2 or 123+ or +123+

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