NAME¶
cadabra - field-theory motivated computer algebra system
SYNOPSIS¶
cadabra
DESCRIPTION¶
Cadabra is a computer algebra system for the manipulation of tensorial
expressions.
The output of cadabra is either plain text or UTF8 encoded Unicode (see the
environment variables described below). The line-breaking properties of the
latter are used to wrap large expressions are reasonable points. In addition
to the standard output, cadabra can print status information, which is wrapped
in special <status>...</status> blocks.
OPTIONS¶
- --silent
- Disables all output, except for output generated by the
@print algorithm.
- --loginput
- Copy the input into the log file.
- --input filename
- Read the indicated file as input before switching to
console input.
- --prompt string
- Set the prompt of the interactive session to the indicated
string.
ENVIRONMENT VARIABLES¶
The following variables toggle various features on or off, depending on whether
the variable is set or not:
- CDB_PRINTSTAR
- Display a star to indicate products. Without this setting,
a space is used.
- CDB_USE_UTF8
- Use UTF8 encoding for output. This in particular will
introduce non-breakable spaces to group objects together, as well as
zero-width non-breakable spaces to prevent line-breaks after brackets,
underscore and caret symbols. When this variable is not set, the output
will be plain ASCII without any special symbols.
SEE ALSO¶
xcadabra(1).
See the web page at
http://www.aei.mpg.de/~peekas/cadabra/ for binaries,
example calculations and the full manual.
AUTHORS¶
Kasper Peeters <kasper.peeters@aei.mpg.de>