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- To: JGA at MIT-MC, BUG-LISP at MIT-MC
- From: Richard L. Bryan <RLB at MIT-MC>
- Date: Fri, 26 Sep 80 23:08:00 GMT
- Original-date: 26 September 1980 19:08-EDT
Extracted from the file MRG;TRIGI > :
(DEFUN ATAN2 (YY X)
(LET ((Y (ATAN YY X))) (IF (MINUSP YY) (-$ Y 6.28318531) Y)))