☜ | ## $%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: 2008-2022 Ed de Moel.

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

For comments, contact Ed de Moel (demoel@jacquardsystems.com)