Powerful yet easy command line calculator.
Project description
cli-calc
Powerful yet easy command line calculator.
Introduction
Using plain python at the command line already provides a pretty decent calculator:
$ python
Python 3.8.5 (default, Aug 2 2020, 16:00:15)
[Clang 11.0.0 (clang-1100.0.33.17)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 2**10
1024
>>> _ / 10
102.4
>>> import math
>>> math.pi
3.141592653589793
>>> math.sin(math.pi / 2)
1.0
>>> exit()
[ Read more about Python as a Calculator. ]
But not all is straight forward.
For example, if you want to calculate sin(pi/2):
- First you need to
import math, - and then use it with
math.sin( math.pi / 2 ).
But there must be a better way! And there is...
cli-calc
$ cli-calc
hex, int, float,
0x0, 0, 0.0, : 2**10
2**10
0x400, 1024, 1024.0, : _ / 10
1024.0/10
0x66, 102, 102.4, : pi
pi
0x3, 3, 3.141592653589793, : sin(pi / 2)
sin(pi/2)
0x1, 1, 1.0, : q
$
cli-calcadds the standard math library to the mix, as well as cmath and others.- Provides convenience functions for formatted output, like fractions and IEEE 754.
- Supports line input from files and Unix pipes.
- And some more... :-)
More examples
$ cli-calc
hex, int, float,
0x0, 0, 0.0, : cos(pi/2)
cos(pi/2)
0x0, 0, 6.123233995736766e-17, : 0xFF ^ 0b10
0xFF^0b10
0xfd, 253, 253.0, : 2**8-1
2**8-1
0xff, 255, 255.0, : log(e)
log(e)
0x1, 1, 1.0, : comb(49,6)
comb(49,6)
0xd56048, 13983816, 13983816.0, : factorial(42)
factorial(42)
0x3c1581d491b28f523c23abdf35b689c908000000000, 1405006117752879898543142606244511569936384000000000, 1.40500611775288e+51, : random()
random()
0x0, 0, 0.24958817003921918, : cmath.phase(complex(-1.0, 0.0))
cmath.phase(complex(-1.0,0.0))
0x3, 3, 3.141592653589793, : q
$
Included Math Libraries
Ready to use out of the box:
-
standard operators
-, >>, ... -
standard math library
cd, log, sin, sinh, gamma, pi, e, tau, inf, nan... -
cmath
phase(complex(-1.0, 0.0)), and then most of the above with complex numbers. -
random
random, choice(['win', 'lose', 'draw']), mean, ... -
built in functions
max, help, sum, ...
Installation
pip install cli-calc
Configuration
For convenience, add a shell script in ~/bin:
cd ~/bin
vi cli-calc
with the following lines:
path=~/path/to/your/cli-calc/cli_calc
cd $path
./main.py
Make it executable:
chmod a+x cli-calc
then use it anywhere. :-)
echo "7+8" | cli-calc
cat foo.bar | cli-calc
cli-calc
Help
cli-calc
h
Input:
"q" for quit, "h" for help
"_" for last float value
"_int_" for last int value
"sin(pi/2)" for sinus, ...
"pi", "tau" and "e" for pi, tau and Euler
"+f" to add display for fraction, "-f" to suppress display for fraction
Other letters are:
he(x), (o)ctal, (b)inary, (i)nteger,
(f)raction, (t)ruth, i(e)ee, ieee_bi(n), f(r)om_ieee
"float" is always visible
See https://docs.python.org/3/library/math.html, use without "math."
https://www.w3schools.com/python/python_operators.asp
Try "cos(pi/2)", XOR: "0xFF ^ 0b10", "2**8-1", "factorial(42)",
"help(math)"
- Permalink to this document as a github page
Warning
- Use of
evalis evil. However precautions are taken.
Pull Request
PR's are Welcome!
- Please read more about Contributing
- and our development enviroment and tool set.
License
Credits
This project was generated with wemake-python-package. Current template version is: d06993f12e3ffad79652a2aec86189dee92d94dd. See what is updated since then.
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Hashes for cli_calc-0.2.25-py3-none-any.whl
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | e10f03f1556ffa953702544aa1a4b4c2870244d12aacb1686d328bf6fc51e5ce |
|
| MD5 | 60f45f5bff1c860105f6d7ddf72e7979 |
|
| BLAKE2b-256 | db48626202be8e7cf6b6140c750e5842df9bb87011362efe2394e1930ea35ce2 |
