This is the command cadabra that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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.
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