The goal is a simple, clean and fast web calculator:

• Instant answers. Just start typing ("3 + 4"). No need to wait.
• Use equations. Use variables like x,y, or even "profit = revenue - expense"
• Save and share. Save and come back to any session. Send to a friend for help or advice.
• Draggable. Drag the "::" and move cells around.
  

There are many ways to use the program, some examples are below:

Example	Result
2 * 20	40 (appears instantly)
2 * 200	400 (appears as you type '0')
x = 3	3 (set "x" to 3, can be used later)
3 * x	9 (use x in equation)
y = 2	2 (set "y")
x * y	6 (use x and y together)
R	.412312 (R is special -- random number from 0 - 1)
(press enter)	.8123 (Creates new random number)
R * 10	5.123 (Random number from 0 to 10)
ceil(R * 10)	7 (Math.ceil rounds number up)
0x1234	4660 (hex to decimal conversion)
043	35 (octal to decimal conversion)

This is a work in progress - comments are welcome.