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  <tmdoc-title|The <name|Cadabra> system>

  <hlink|Cadabra|https://cadabra.science/> is a computer algebra system for
  the manipulation of what could loosely be called <em|tensorial
  expressions>. It is aimed at, though not necessarily restricted to,
  theoretical high-energy physicists. Because of its target audience, the
  program's interface, storage system and underlying philosophy differ
  substantially from other computer algebra systems. Cadabra is developed by
  <hlink|<name|Kasper Peeters>|https://cadabra.science/people.html> and
  distributed under the GPL license.

  <tmdoc-copyright|1998--2018|Joris van der Hoeven and Darcy Shen>

  <tmdoc-license|Permission is granted to copy, distribute and/or modify this
  document under the terms of the GNU Free Documentation License, Version 1.1
  or any later version published by the Free Software Foundation; with no
  Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
  Texts. A copy of the license is included in the section entitled "GNU Free
  Documentation License".>
