Tungsten - WolframAlpha CLI

Overview

A GPLv3+ licensed bash script that processes queries with the WolframAlpha API. It is named tungsten because that word refers to the same metal that wolfram does, respectively of Swedish and German origin.

Derived from wa.sh by saironiq.

How To Use

You should get your own API Key (called AppID on WolframAlpha) from WolframAlpha before use. It can take a few minutes or hours to get your API key once you apply for it. If you do not provide an API key then a fallback will be used, however that may result in a few missing / incorrect characters in the output.

Simply type the query as you would at WolframAlpha.com, examples:

tungsten "P=NP"
tungsten "What's the airspeed of an unladen swallow?"
tungsten What is the airspeed of a laden swallow?

The results that can be displayed as plain text will be returned for you to view, example:

$ tungsten not a or b
Input
¬a||b
(NOT a) OR  b
Truth table
a | b | ¬a||b
T | T | T
T | F | F
F | T | T
F | F | T
Minimal forms
DNF | ¬a||b
CNF | ¬a||b
ANF | ¬((a&&b)xora)
NOR | ¬(¬anorb)
NAND | anand¬b
AND | ¬(a&&¬b)
OR | ¬a||b
Other forms
ESOP | (¬a&&¬b)xorb
ITE | (a&&b)||¬a
Boolean operator number
11 with variable ordering {a, b}

When outputting to a terminal, the output is colourised.

Install

Tungsten requires the following packages: curl, jq, and bash, as well as the POSIX iconv command, which is often provided by libc packages like glibc. Provided that these are installed, the script can be run in-place, or included in your PATH.

Changelog

2.1

• Handle null results gracefully. Thanks to @federicotorrielli

2.0

• Swap xmlstarlet dependency out for jq (JSON backend instead of XML). This avoids a class of bugs from XML handling.
• Support for simple queries without an API Key. Thanks to @theblazehen

1.1

• Add XML un-escape to fix seeing things like & in the results

1.0

• Initial release