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Calculator with GUI

Project description

Kalkon - /kalˈkuːn/

Swedish Noun

1. a turkey; a kind of large bird (colloquial)

2. a turkey; a failure

3. a python/asteval based calculator

Kalkon

Quickstart

Install from PyPi

pip3 install kalkon

Install from GitHub

> git clone https://github.com/freand76/kalkon.git
> cd kalkon
> python3 -m pip install .

Start

Start using python.

> python3 -m kalkon

Start using shell script (if the pip3 bin-folder is in your path).

> kalkon

Calculator

Kalkon

Asteval

The calculator uses the asteval package to evaluate expressions.

Asteval handles python-like expression and will obey python rules for arithmetic and logic operators.

Example

int(sin(pi/3)*log(5) + 0xfe) & 0x23

Asteval also handles variables, i.e. you can give variable a value and use it for later calculations.

Example: Set variable

foo=3

Example: Use variable

10 + foo * 5

Commands

All commands start with a colon character Example: :hex

Output format commands

The calculator can show the result of the expression in several different modes, enter one of the following commands to switch to the desired mode.

Command Description
:float Show results as floating point
:f32 Show results as 32-bit float / ieee-754
:int Show results as integer, floats will be truncated
:i8" Show results as signed 8-bit integer
:i16 Show results as signed 16-bit integer
:i32 Show results as signed 32-bit integer
:i64 Show results as signed 64-bit integer
:u8 Show results as unsigned 8-bit integer
:u16 Show results as unsigned 16-bit integer
:u32 Show results as unsigned 32-bit integer
:u64 Show results as unsigned 64-bit integer
:dec Show results as decimal values
:hex Show results as hexadecimal values
:bin Show results as binary values

Control commands

The following command will clear the calculator stack.

Command Description
:clear Clear the calculator stack

Shortcuts

Shortcut Description
Shift+Enter Drop stack item to editable field

Project details


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