kalk 0.2.1

a simple cli RPN calculator written in Python

installation

Requires Python 3.9+.

pip install kalk

Usage

After installation run kalk from your terminal.

Kalk follows Python syntax for numbers. It even support complex numbers:

>>> 1-.1e2J
(1-10j)

In RPN syntax one would first enter the operands and then the operator:

>>> 1
1
>>> 2
2
>>> +
3

You may also enter the operands and the operator in one line, just use space to separate them:

>>> 41 1 +
42

(tip: the space is not needed when the syntax is not ambiguous.)

As mentioned before, Kalk follows Python’s syntax, so ** is the power operator and ^ is bitwise and.

>>> 3 3 **
27
>>> 3 3 ^
0

Most of the functions defined in Python’s math modules are supported.

>>> 6 lgamma
4.787491742782047

and many more:

>>> 1 2 3 4 5 sum
15

A few handy functions:

• c clears the stack

• s prints the stack

• pi adds the pi constant to the stack

• e adds Euler’s number to the stack

• <> swaps the place of the last two values in the stack.

• h prints a list of all operators. (still needs lots refinements.)