rcpy echo 10 20 + p | rcpy
RCPY is a simple reverse-polish notation calculator written in python. Its purpose was to add thing I felt were missing in dc(1) that I need in my daily usage of a calculator.
It supports decimal, hexadecimal, binary as well as binary operation on these values.
pop: print and remove the value from stack dump: dump the current stack content d: duplicate the top value of the stack print: print the value on top of stack p: same as `print` swap: swap the last 2 values on top of stack r: same as `swap` clear: empty the stack c: same as clear Current mode is shown in the prompt, the used mode won't neither the values already in stack nor the inputed values. If you add 0x42 to your stack while being in bin mode, the stack will still con‐ tains 0x42 but if you do an operation, the output will be in the chosen mode. hex: switch output of operations to hexadecimal bin: switch output of operations to binary dec: switch output of operations to decimal conv: convert value on top of the stack to the selected mode, this command won't work on floating values int: convert a floating value to an integer
quit: quit RC q: same as `quit`
+ Addition - Substraction * Multiplication x Multiplication / Division % Modulo ^ Power v Square root
All operation pop the two top values, and replace them by the result of the operation in the stack.
& Logical and | Logical or xor Logical xor (^ being used for power) << Shift to left >> Shift to right
All binary operation pop the two top values, and replace them by the result of the operation in the stack.
Rcpy can handle some macros, the handling of this is quite basic and may leave room for improvements.
m: register macro, m id op1 op2... This can be used at any given time, but the macro will store all commands following the id until the end of the line. @: call back a macro '@ id'
Sample session of RC:
[dec] rcpy> 10 20 30 [dec] rcpy> dump 10 20 30 [dec] rcpy> + d 10 50 [dec] rcpy> hex [hex] rcpy> + p 0x3c [hex] rcpy> bin [bin] rcpy> conv 0x3c -> 0b111100 [bin] rcpy> dec [dec] rcpy> 7 / p 8 [dec] rcpy> 22 / p 0.363636363636 [dec] rcpy> 10.7 + p 11.0636363636 [dec] rcpy> 1 4 << 1 8 << | p 272 [dec] rcpy> hex [hex] rcpy> conv 272 -> 0x110 [dec] rcpy> m a / 1000 * p [dec] rcpy> 3.95 300 @ a 13.166666666666666 [dec] rcpy> 2.68 200 @ a 13.4