jCalc - Free Online Scientific Calculator
This is an online calculator which is designed to run directly in your browser,
without the need to download software to your PC. Although downloading Calc98
gives you a much more powerful calculator, the online calculator is useful if
you are not able or do not wish to download Calc98. The calculator uses
Q: Why download the full Calc98 software when I can just use this online calculator?
A: Yes, if you download copies of the necessary files. These are listed in the question on using the software on your own website. You can also store the files locally on your computer and run them from there.
Q: How do I give feedback?
A: You can either send us email, or you can report bugs on our bug report page. You can use either method if you just want to send us comments about jCalc98.
Q: Can I use this calculator as part of my website?
At the place in your page where you want to start the calculator you need to add some HTML which you can copy and paste from here:
This will give you a clickable icon like this: Calculator
It is best to include the HTML as one long line as given, because breaking it up may give tricky formatting problems on some browsers.
You will also need the following image files:
- Main Keypad
- Function Keypad
- Main Keypad (shifted)
- Function Keypad (shifted)
- Calculator icon
Download these files also (by right-clicking on the image and choosing "Save picture as...") and place them in a directory called "images" on your server.
Q: Can I use the calculator to edit a value in an HTML form on my website?
In order for this to work you have to make sure that the name of the form and the name of the correct input field are both given as arguments to the popupcalc function.
If you click on one of the calculator icons, it should open up the calculator with the value of the adjacent field loaded. If the calculator is already open it should bring it to the foreground. As you use the calculator, the input field in the form is updated automatically.
Q: Okay, where is the link?
A: The links are at the top of this page, or use this link to run jCalc98 in its own window. If you prefer to view jCalc98 in a normal browser window you can use this link.
Bookmark this page in your browser using Ctrl and d or using one of these services: (opens in new window)