<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Jan 12, 2014, at 5:08 PM, Franck Pastor <<a href="mailto:franck.pastor@me.com">franck.pastor@me.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span style="font-family: Consolas; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; display: inline !important; float: none; ">In each of these three examples Dirk's and Dan's definitions win the contest… But I'm not able to explain why.</span></blockquote></div><br><div>Happy to lose the contest as it looks like we will all win in the end thanks to Franck's sharp eye!</div><div><br></div><div>I used arguments from .1 to 1.1 step .1 when testing and was working with degrees as output so atan(1) = 45. The consistency of atan vs. atand needs 'attending' to.</div><div> </div><div>btw I extended the series out a bit in mp-tool and it did not converge quickly.</div><div><br></div><div>Also interesting that we are using calculators to test ;-) Thanks all!</div><div><br></div><div>John</div></body></html>