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Trailing-Edge - PDP-10 Archives - decus_20tap2_198111 - decus/20-0026/recp.doc
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FUNCTION RECP

PURPOSE
   CALCULATE RECIPROCAL OF AN ELEMENT. THIS IS A FORTRAN
   FUNCTION SUBPROGRAM WHICH MAY BE USED AS AN ARGUMENT BY
   SUBROUTINE MFUN.

USAGE
   RECP(E)

DESCRIPTION OF PARAMETERS
   E - MATRIX ELEMENT

REMARKS
   RECIPROCAL OF ZERO IS TAKEN TO BE 1.0E75

SUBROUTINES AND FUNCTION SUBPROGRAMS REQUIRED
   NONE

METHOD
   RECIPROCAL OF ELEMENT E IS PLACED IN RECP