“InstaCalc is a vision for a fast, simple and powerful calculator”
A sample on how to this is shown below.
Results appear as you type. Edit in real-time.
Easier than Excel
Use readable numbers and equations.
Save a link or embed in your webpage. Readers can see your thoughts, update the numbers, and link to the new results. No logins, no hassles.
Try charts, programming and more.
And here is the sample on embedding this feature on your blog. I have adopted the HTML version although you can also use JAva version.
and Example input might be as follows using Pythagorean Theorem:
Row 1 : X = 5
Row 2 : Y = 10
Row 3 : (x^2+y^2)^(1/2)
It should give you and answer of 11.18033988
You could provide any mathematical equation you like. Even it is 3,4,5 and so on variables. It is cool that is why it caught my attention, As an Engineer this kind of application is very useful.