☜	$%SQRT M[UMPS] by Example					☞

2-Jul–96, 6:54:35
Routine Save for General Mathematics Library function $%SQRT^MATH
 ;
 ; Unless otherwise noted, the code below
 ; was approved in document X11/95–11
 ;
 ; If corrections have been applied,
 ; first the original line appears,
 ; with three semicolons at the beginning of the line.
 ;
 ; Then the source of the correction is acknowledged,
 ; then the corrected line appears, followed by a
 ; line containing three semicolons.
 ;
SQRT(X,PREC) ;
 If X<0 Set $Ecode=",M28,"
 If X=0 Quit 0
 ;
 ;;;
 ; Alan Frank (October 1995)
 Set PREC=$Get(PREC,11)
 ;;;
 ;
 ;
 ;;; If X<1 Quit 1/$%SQRT^MATH(1/X)
 ; Winfried Gerum (8 June 1995)
 If X<1 Quit 1/$%SQRT^MATH(1/X,PREC)
 ;;;
 ;
 New P,R,E
 Set PREC=$Get(PREC,11)+1
 ;
 ;;; Set @(E="1E-"_PREC)
 ; Winfried Gerum (8 June 1995)
 ; Eli Reidler (28 June 1996)
 Set @("E=1E-"_PREC)
 ;;;
 ;
 Set R=X
 For  Set P=R,R=X/R+R/2,P=P-R/R If -E<P,P<E Quit
 Quit R
 ;===
 ;
 ;
 ;

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Copyright © Annotations: 2008-2024 Ed de Moel.

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This page most recently updated on 30-Nov-2011, 20:08:05.

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