Language For Online Graphing
Jul 20, 2005
I am considering writing an online graphing utility. I plan it to be
of good quality, such that an undergraduate university student can
print it out and include it with a lab report.
Data points will be entered, having been generated by another program;
the utility will NOT accept functions for plotting--just the data
points.
As far as I know, Javascript does not provide graphing functionality.
Could somebody in this group please let me know what the best language
to use for writing this utility.
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Dec 27, 2002
The attached was developed in IE 6. It will likely work in IE 5 but not Netscape, sorry.
J-Graph will plot a formula(function), solving for x, in the +,+ coordinate plane. (My terminology may be off, its been a while since my last math class.)
Max X and Max Y are the limits of the functions.
Dot Color is the color of the plotted points.
Axis Color is the color of the axis.
Detail is the number of plots (resolution) of the line. The higher the detail, the sharper the line, the longer it takes to plot.
Magnification allows you to zoom in and see more detail. The higher the magnification, the more detail you see, the longer it takes to plot.
Graph Lines is the interval at which to place lines on the graph. Zero results in no lines.
Graph Color allows you to change the colors of the x and y Graph Lines.
The function must be regraphed to view any change in the above parameters.
Although there are two functions only one can viewed at a time. Sample functions are provided so the format can be viewed. The functions are written in/with javascript parameters.
The "Show Math Functions" at the bottom of the page will provide a list of javascript math properties and methods.
Planned Updates:
Ability to mouseover a plotted point and display the coordinates.
Print the graph with the parameters.
Label the Graph Lines
Thoughts, suggestions, and changes welcome.
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Jan 9, 2011
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[Code]...
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Apr 15, 2009
The previous developer who has been working here used javascript on some forms and they're not functioning properly when opened with IE (any version)
The link to the form:
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On firefox, it doesn't prompt any error and as you can see, it auto selects "Lebanon" as a country and it selects the date with 3 days in between till the return date. These don't work on IE, it just shows blank.
Here is the javascript used. code...
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Jul 23, 2005
Anyone have a guess why all these novices use language="javascript1.2"?
Is this syntax used in some popular book?
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Jul 11, 2006
If I want to detect a user's language, so that I can
change some text to suit them, how do I do that in
Javascript?
Or aren't modern browsers supposed to be able
to cope with more than one language on a page,
separated somehow by language identifiers,
and display only the appropriate text? Maybe
I was dreaming when I read that.
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Jul 20, 2005
Is there an easy way to detect the local language settings of a client
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I want to for example determine if the users browser or system is set to
English, French, or Italian and display a message in the appropriate
language.
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Jul 20, 2005
I have some doubts about this meta tag:
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Do I really need to declare this meta tag in all my pages?
If I declare it, will I still need to create my scripts this way?
<script type='text/javascript'>
Is there any advantage/disadvantage when using it?
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Jul 20, 2005
I am a bit cconfused with the different tags I encounter to start a script.
I used to use: language="Javascript"
Nowadays I use: type="text/javascript"
I did see some javascript1.2 (i think) too, but never used that.
But when I let my favorite editor (Eclipse) do some codecompletion I get:
<script language="JavaScript" type="text/javascript" src="jsfile.js"></script>
Forget about the src for a moment. I see 2 definition in the same tag.
Is that ok? And on a sidenote: Am I safe when I use the modern type="text/javascript" only? The answer probably depends on the browser.
Where can I find some coherent information? Some overview with browsers and javascripttags and such.
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Apr 11, 2011
How to and in which memory variable read the 'Preferred language', and make another HTML page call based on this value ? A HTML instruction, a JavaScript or a jQuery instruction ? Which one ?
[Code]...
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Mar 8, 2010
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Apr 7, 2010
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Oct 22, 2011
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[code]....
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Jan 29, 2009
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Jul 26, 2010
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Jan 27, 2009
how to access multilingual language through java
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Aug 17, 2010
I am trying to develop a form that will be used to place orders. The form contains a table that has 1/2 dozen columns. Three of the columns are named: Item-Name, Quantity, and Price.
Item-Name and Price are literals (readable only). Quantity is a number the user will enter. Multiple items can be selected.
At the bottom of the table, I would like to have a box called "Total". In HTML, is there a way to do arithmetic functions? In my case: QUANTITY times PRICE and add the amount to whatever was in TOTAL. If it can't be done using HTML, is there any script language I can use within the HTML page?
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Jul 20, 2005
I must admit that the more I use and learn JavaScript, the more
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Jun 10, 2007
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Apr 27, 2010
Here's the website code...
Id like to make it to the site remembers whether someone choses the english or french version of the site. How hard is it to do something like that?
Can it be done in javascript?
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Jul 15, 2010
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Code:
<script>
<script language="JavaScript1.1">
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basically, by putting the script language here, IE8 is saying there is a syntax error! removing it stops the error but stops the script from working. What can I do here? If I put it in an external .js file instead (right now it is in the head of the HTML page) will this solve the problem?
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Mar 20, 2009
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Jun 30, 2011
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Apr 28, 2011
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Reference:
[URL]
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Feb 2, 2005
I noticed there is an indicator to someone's MSN online status in my hotmail inbox page.
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Aug 7, 2006
I have the source code to an old BASIC program that a friend of mine
would like to run online. I am a beginner at JS, but I think that it
would be a good choice for the project. My background is in C/C++ and
web development.
Any suggestions that might get me off to a good start here? I can
provide more information if needed, but I am not sure what would be
helpful. The program is 550 lines in what appears to be BASIC and is a
calendar conversion program. You give it a date and it will convert it
into one of many other date reckoning systems (Gregorian, Hebrew,
Egyptian, etc, etc).
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