It's probably something with rounding off, or floating point problems.
I have a timer which is used when solving the Rubik's cube. It has to
measure an exact time, but the clock display I made shows a different
value than the actual time (also displayed after session: ...). I am
using the same variable for both displays. sometimes it's off by .02.
I have the two text boxes on a form, both of which a user enters a
number. I simple need to ADD THESE UP!
I know, its daft, but no matter what I do, it just adds them together.
Example: 1+1 is clearly 2, but it outputs 11!
An example of my code:
var loan = document.loandata.loan.value;
var other = document.loandata.other.value;
total = (loan+other);
I am trying to make a script that prints a date in the format Sunday
14th January 2007. Where the date that is displayed is the next sunday
3 weeks from now. For example today is 7th January. The script would
print Sunday 28th January 2007. It would read that all of this week
until next sunday when it would change to Sunday 4th February.
I'm building a form that is calulated based on the options selected with a javascript form. This is my first attempt at something like this so I'm a bit lost at the final update.
First to be sure I'm on spot here is the javascript I'm using to update the form - <script>
function BDWcalc ()
{
[code]....
I have a javascript that should convert any date into a number between 1 and 260. Based on the outcome of that calculation, a viewer is directed to a specific web page.How can I verify the calculation? How can I see what number javascript is arriving at so I can backtrack to the error? It is not serving up the correct page.
I have compared the results to a calculator on another website [URL] that uses a different script to calculate the same result -- that's why I am saying the end results are not correct. On the other website, scroll down to where you enter a date. It returns a name just above the date (example: July 25, 1970 returns Electric Star). The script I included above returns Yellow Sun. July 25, 1970 should = 68.
function calculate() {
if(!isValidDate())
return;
[code]....
Please take a look at the picture below:When you enter the value of Volume and Unit Cost... it should automatically add up into Net Cost and VAT (including float number).
View 1 Replies View RelatedI currently have a web page that is building a web form from data contained in a SQL table. I need to do some calculations on the numbers that are populated into the form. I have used the following javascript code to successfully complete my calculations but I can only use this code at the bottom of my page because executing it at the top of my page the form fields are still empty. How would I use or modify the code I have to display the calc at the top of the web form. Example as follows:
<form method="POST" target="_self" name="dialer" enctype="text/plain">
Loan Amount: <input type="text" value="400000" name="loan" />
Interest Rate: <input type="text" value="1.00" name="apr" />
Amortization Term: <input type="text" value="480" name="term" />
</form>
<script language="JavaScript">
var princ = document.dialer.loan.value;
var term = document.dialer.term.value;
var intr = document.dialer.apr.value / 1200;
var output = princ * intr / (1 - (Math.pow(1/(1 + intr), term)));
var calc = (Math.round(output * 100)/100);
</script>
f
Code:
unction up(){
var inpt= document.getElementById("item_one").value
document.getElementById("aCom_total").value=Math.floor(inpt)
}
function up2(){
var inpt= document.getElementById("aCom_total").value
[Code]....
I input the valve 100 in textone my total =100 I input the value into 20 text two my total is not 120, but 10020
I have a form which must calc the difference between 2 date fields and
return the result in a third field. I have the following code but it does
not seem to work. Can anyone tell this total newbie where he is going wrong
or suggest a more elegant way of doing this.
<head><script>
function doit(oForm, usrInp)
{
var one_day = 1000 * 60 * 60 * 24 ;
var userDate = new Date(usrInp)
var dueDate = new Date(usrInp)
diff = dueDate - userDate
oForm.diff.value = (diff/one_day) + ' days'
}
//-->
</script>
</head>
<body>
<form name="a">
<input type="text" name="userDate" >
<input type="text" name="dueDate" onblur='doit(this.form, this.value)'>
<input type="text" name="diff" onfocus=this.blur();>
</form>
I've got a small problem here. I'm trying to write some code that would
generate a drop-down menue for me, where I'd just need to enter the
menu- and submenu items into an array. The items are to be displayed as
text. Now, I want to have the layers with the submenues to appear more
or less under the appropriate main menu items. For this I need to be
able to calculate how many pixels a given text uses up on the screen of
the user. That's all fine with IE and an unproportional font like
courier. The problem is, there is this nice setting that allows you to
change the diplay size of the text - which is pretty much disfunctional
in IE, but in mozilla, it works. Which means that I can't just say that
one letter in courier, size 2, is 4 pixels wide and be happy with my
calculation, because then somebody can just pop up with another text
diplay size and *boom* - my calculation is wrong again.
Now, is there a realistic way to find out how many pixels _exactly_ a
piece of text takes up on the user's screen? Or can I make the given
piece of text a DIV and then have some kind of document.divname.left
that gives me the actual location of this text?
I'm looking for a jquery tutorial which helps on calculating the distance between two points?
I've found a few javascript ones, but its breaking the rest of my jquery code!
does anyone know of anything? im using it to calculate a price for a specific distance traveled.
I'm creating this form that when you tick a checkbox, it adds the value of that checkbox to the running total. Then it displays the Calculation and Running total.
Code:
<html>
<head>
<script type="text/javascript">[code]....
I'm working on a page that needs to do some calculations based on values that the user inputs via sliders. I can get the values selected to display in a text box below the slider, but I also need to store the value as a variable for use in calculations.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[Code].....
I try to calculate all the number based on selected radio button and display it in the textfield on the same page can someone can tell me the errors and suggest how to make my calculation is right.
[Code]...
Trying to figure out a problem with the "Optional" values in a list box so I am going to keep it as simple as I can..
I am trying to calculate the optional value of a list box in stead of programming it the long way around.
I created a list box with several peoples names, like John, Sue, and Mary.
I have assigned each name a numeric "optional" values
I know the code in the list box should be:
Normally, I would code this along the lines of:
But I want to figure out how to select the Optional Value from the list, and multiply it by time instead of doing the SELECTEDNAMELISTBOX=="John" route..
I am facing following problem while trying to embed JQuery Calculation plugin.
Code:
Sum:
And following is JQuery Code:
And following is error, displayed in FireBug:
Code:
Note: Table Sorter plugin works fine and it seems problem in calculation plugin.
I am really new to Javascript and I have mutteled trough this form and about the onyl thing I have left to do is to get the TOTAL to display in Currency format and not just 4356.548
It needs to look like this:
$4,356.55
I am a novice user of Expressions Web4 and am attempting to build a form that makes calculations of field entries and displays the results in designated fields. Specifically, multiplying the entry in the pmt_amt field by .03 and placing the result in the srv_fee field, then adding the entry in the pmt_amt field to the result in the srv_fee field to show the resulting sum in the total_pmt_amt field. I have created functions in JavaScript for both calculations and tied them to onClick relative to a button btn_srv_fee.
I used this method by searching online for an appropriate method and tweaked results for my application. Below is the code for what I am attempting to do. Upon making an entry in the pmt_amt field and then clicking the button, there are no results in neither the srv_fee field or total_amt_field. Below is the code for the functions and the associated section that identifies the fields.
<script type="text/javascript">
function multiplyNumbers(pmt_amt, .03, ResultField1)
{
[code]....
I have an input for Fahrenheit in degrees, then a button to start the calculations, then an input box for the result. But the result stays empty. where my Javascript code went wrong? I am modifying someone else's code form the Internet,I am guessing at how it works. [code]
View 4 Replies View RelatedI am currently working on a project where I am using the jQuery Calculation plugin [URL] to do some math functions in a dynamic form, the issue is that when a new set of fields is created the calculation script only pulls data from the ones there when the page loaded, I am fairly certain that what I need to do is use the live function, however I am not very familiar with it and still learning. My jQuery for the plugin is :
$("input[name^=emem]").sum("keyup", "#totalMem");
This is my very first javascript (I have limited knowledge C++ and php). I am trying to make an instant quote calculator, but having some trouble.I want to display the result of the calculation in the textbox with id price.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>[code]........
The exercise problem is to "MODIFY the code in the "calculate_click" event so interest is added to future value just once each year for the number of years that they were entered by the user". The calculation as you see it below assumes an amount is invested MONTHLY (not just once), and the interest is calculated accordingly. This is what I think the problem is trying to calculate: using a $100 one time investment at 10% interest (compounded once annually) for one year = $110 as the future value. For two years, the future value should equal $121 (110 + (110*.10)). Okay, if my math is wrong, let me know. This is what I'm trying to get it to match to.
I have been able to modify the calculate_click function to compound the interest annually (it does it monthly now). Cool. I cannot get it to stop adding $100 annually. See my math above? I think that's the answer. My manipulation of the code yields $110 for the first year, $231 for the second year, etc. The $231 is incorrect cuz it adds an extra $100. See, this is a simple interest calculator I can't figure out! The original code is below that calculates the investment as a monthly investment as opposed to one-time. To avoid confusion, I did not include any of my modifications. But yeah. I know that the major culprit is how the "for" loop is being executed. I've highlighted where I think the code needs to be changed, but I haven't changed it here. Note the first function is a shortcut to execute getElementbyID.
The Code:
var $ = function (id) {
return document.getElementById(id);
} var calculate_click = function () {
var investment = parseFloat( $("investment").value );
var annualRate = parseFloat( $("rate").value );
var years = parseInt( $("years").value );
$("futureValue").value = ""; .....
i having problem on passing the database query result to the javascritpt for calculation.i doing a program that need to calculate the total_price for the purchase items. i use getString to get the foodID, f_item and the unit_price from database, then i need to use the unit_price for doing the calculation in javascript. after get the data from database, the unit_price is used to multiple with the qty that user input to calculate the total_price.since there are several row of data get from database, so user need to enter the qty for each item and then press [Calculate_db] button to perform the calculated result. hence, the total_price for each item is calculated and the sum of all the total_price also being calculated and display in the page.now, i having problem on pass the unit_price to the javascript for calculation.
<form name="formCalc2">
<table>
<tr>
[code]....
I am not able to calculate the offsetwidth of the element which contains extra space in between the characters.for ex. if the element contains "A A" as a innerHTML value - if we calculate offsetwidth as 29 and also if the element contains "A A" value again I am getting the same offsetwidth as 29.While calculating the offsetwidth it is not calculating the empty space.May I know how to calculate the offsetwidth with the empty space because I need to insert the ellipsis (...) if it exceeds original width?
Code snipet
function fitStringToWidth(title,width,className) {
var span = document.createElement("span");
span.className="titleBar-Title-1";
[Code].....
I have a form which i want to calculate entered values in text boxes. What i want from the below code is ;
1- i may have 100 textboxes so the javascript that i use may be inefficient for larger amounts. Does anyone have more encapsulated solution for multiplying and adding to total amount?
2- when i click check boxes their values must be added to total textbox below.
3- How can i calculate VAT and grand total? with $ sign infront of them ?
its seems easy but couldn't manage to do as i am not a programmer.
I'm trying to display a calculation result with a thousands separator (eg $1200 to $1,200).
what javascript code I can use to achieve this?
This is my 'calculate' button....
<a href="#TB_inline?height=360&width=380&inlineId=popup" class="thickbox" onClick="checkValue(); calculateTotal(); true" >
<input type="button" name="Button" value="OK" class="OK" /></a>
[Code].....