pol

Command line calculator using reverse polish notation

Decimal, hexadecimal, binary and octal number are supported

Usage

As a command line tool: pol

~$ pol
Reverse polish notation calculator
>5 10 * dec
50
>0xA 0x6 + hex
0x10
>q //quit the program
~$

Instructions are below

pol can also be use as a module

import rpn_calc
cal = rpn_calculator.Calculator()
cal.evaluate("1 2 + dec")
# print 3

Install

pol can be install from pip

pip install rpn-calc

If you want to install from a source distribution, extract the tarball and run the following command

python setup.py install

Documentation

This README is the Documentation

Repo

The code is on github

Config file

You can write your own command

By default commands from file ~/pol.yml (if exists) are add to the calculator

You can add other files with the flag -f/--file

Config files are written in YAML

Currently supported parameters

• shortcut: shortcut to commands (see example below)
• rounding: parameter used to round number (default: 0)

Example of a valid config file

shortcut:
 - double = 2 * # double the last value of the stack
 - 10* = 10 switch ** # same as 10 {x} **
rounding: 3

Command must be on the format {name_of_command = command}

Options

usage: pol [-h] [-v] [-l] [--ignore-local-config] [-f FILE [FILE ...]]

A RPN calculator written in python
Support decimal, hexadecimal, binary and octal

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show the version number and exit
  -l, --list            list all commands available and exit
  --ignore-local-config
                        don't add commands from ~/.pol
  -f FILE [FILE ...], --file FILE [FILE ...]
                        file with customs commands

List of commands

+ : Take 2 numbers from the stack, add them and put the result in the stack

- : Take 2 numbers from the stack, substracte them and put the result in the stack

* : Take 2 numbers from the stack, mul them and put the result in the stack

/ : Take 2 numbers from the stack, divise them and put the result in the stack

// : Take 2 numbers from the stack, divise them and put the integer result in the stack

% : Take 2 numbers from the stack, divise them and put the remainder in the stack

** : Take 2 numbers from the stack, apply power and put the result in the stack

sqrt : Replace the last number in the stack with the square root of itself

exp : Apply e**x to the last number of the stack

log10 : Apply log10 to the last number of the stack

log2 : Apply log2 to the last number of the stack

ln : Apply natural logarithm to the last number of the stack

and : Take 2 numbers from the stack, apply a bitwise "and" and put the result in the stack

or : Take 2 numbers from the stack, apply a bitwise "or" and put the result in the stack

xor : Take 2 numbers from the stack, apply a bitwise "xor" and put the result in the stack

<< : Take 2 numbers from the stack, apply a left shift and put the result in the stack

>> : Take 2 numbers from the stack, apply a right shift and put the result in the stack

abs : Make absolute the last value of the stack

inv : Inverse the last number of the stack

neg : Change the sign of the last number in the stack

sin : Replace the last number in the stack with the sine of itself (measured in radians)

cos : Replace the last number in the stack with the cosine of itself (measured in radians)

tan : Replace the last number in the stack with the tangent of itself (measured in radians)

asin : Replace the last number in the stack with the arc sine of itself (measured in radians)

acos : Replace the last number in the stack with the arc cosine of itself (measured in radians)

atan : Replace the last number in the stack with the arc tangent of itself (measured in radians)

atan2 : Take 2 numbers from the stack, apply a atan2 function and put the result in the stack

sinh : Replace the last number in the stack with the hyperbolic sine of itself

cosh : Replace the last number in the stack with the hyperbolic cosine of itself

tanh : Replace the last number in the stack with the hyperbolic tangent of itself

asinh : Replace the last number in the stack with the asinh of itself

acosh : Replace the last number in the stack with the acosh of itself

atanh : Replace the last number in the stack with the atanh of itself

torad : Convert the last number from degree to radian

todeg : Convert the last number from radian to degree

switch : Switch the last 2 numbers of the stack

del : Delete the last number in the stack

copy : Copy the last number of the stack and add it to the stack

pi : Add pi to the stack

tau : Add tau to the stack

e : Add e to the stack

sum : Take all the number of the stack and add the sum

fact : Replace the last number in the stack with its factorial

round : Round the last number in the stack

ave : Take all the number of the stack and add the average

dec : Print the last number of the stack and remove it

hex : Print in hexadecimal format the last number of the stack and remove it

bin : Print in binary format the last number of the stack and remove it

oct : Print in octal format the last number of the stack and remove it

ratio : Print in integer ratio format the last number of the stack and remove it

s : Print the stack

clear : Empty the stack

back : Put back on the stack the last value that was printed

help : Print help; Same as pol --list

q : Quit the program

License

MIT