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Manipulating the Stack
The basic idea of an RPN calculator is that you have a stack of numbers that you preform operations on.
To place a number on the stack simply type the number and hit enter.
This places the number on the stack and allows you to preform operations on it or place more numbers under it.
(Currently the calculator only supports real numbers but it will soon be extended to support complex numbers and matrices... hopefully).
Try this example. Hit
5
ENTER
3
ENTER
+
This places 5 on the stack. Then 3 below it, then adds the two numbers.
You should now only hade the number 8 on the stack.
Remember that you need 2 numbers on the stack to preform a binary operation like addition or multiplication.
You can preform unary operations with this calcuator. With the 8 on the stack you can press the sqrt key and you will see 2.828427 (the approximation of the square root of 8).
Most of the keys are pretty self explanitory.
Remember that you
Next: Hot Keys
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eli
2001-08-06