The maple package NPTOOLS; a symbolic al
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Sasha Cyganowski; John Carminati
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Article
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1998
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Elsevier Science
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English
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In this paper, we present and discuss the NFTOOLS package written for the computer algebra system Maple. The package contains the main routines "nulltran", "inv", "nullor", "omull" and "pptype". The routine "nulltran" is an implementation of the 6-parameter Lorentz group in the Newman-Penrose (null