Page 8 of "Calculating-Shadows.pdf" on my website www.illustratingshadows.com goes into this issue. Watch out for how Excel handles the INT function.
I can't remember if I left Calculating-Shadows.pdf in the booklet section, if not then do:- http://www.illustratingshadows.com/Calculating-Shadows.pdf and note that the C and the S of the file name are in upper case. Simon --- On Mon, 8/25/08, Chris Lusby Taylor <[EMAIL PROTECTED]> wrote: > From: Chris Lusby Taylor <[EMAIL PROTECTED]> > Subject: Re: Transfer to EXCEL > To: "Tony Moss" <[EMAIL PROTECTED]>, "Sundial Mailing List" > <sundial@uni-koeln.de> > Date: Monday, August 25, 2008, 4:56 AM > Hi Tony, > I'm not 100% clear what you want to display. For > instance, for -0.75 minutes > do you want -0 and -45 or -0 and 45 or 0 and -45? Or, > doesn't it matter much > so long as any non-zero figure has the correct sign? > > Also, for -4.483 do you want -4 and -28.98 or do you want > the seconds > rounded to, say, the nearest second? The following assumes > you do want > rounding to the nearest second. Omit the ROUND functions if > you don't. > > I don't use Excel, I use Open Office, but am pretty > sure the following works > in both: > > Assuming cell A1 has the number you want to convert, then > to get whole > minutes use: > =ROUNDDOWN(ROUND(A1*60)/60) > > (Note that ROUNDDOWN rounds towards zero, which is what you > want.) > > Assuming you put the whole minutes in cell B1, then seconds > are: > =ROUND(60*(A1-B1)) > > For -0.75 minutes this will give 0 and -45 > For -1.25 minutes it will give -1 and -15 > For 2.999 minutes it will give 3 minutes 0 seconds. > For -4.483 minutes it will give -4 and -29 > > I don't know any simple way to display -0. It's > much easier to show 0. > > Hope this helps > Best wishes > Chris > > > > > ----- Original Message ----- > From: "Tony Moss" > <[EMAIL PROTECTED]> > To: "Sundial Mailing List" > <sundial@uni-koeln.de> > Sent: Monday, August 25, 2008 10:35 AM > Subject: Transfer to EXCEL > > > > Fellow Shadow Watchers, > > For many > years now all my > > dialling calculations have been done using > spreadsheets in an ancient > > version of MicroSoft 'Works'. A recent change > of Mac operating system > > has me painfully transferring everything to EXCEL > version 12.1.1 > > Data cells COPY/PASTE directly but some of the > 'Works' formulae no > > longer function and 'Help' is pretty > convoluted. > > > > I need to take positive and negative decimal times > e.g. 3.26 minutes and > > -4.483 minutes and convert them into two columns of > whole minutes and > > whole seconds. As I recall negative values of less > than 1 minute e.g > > -0.816 mins. were a particular problem. > > > > As one who has to take his shoes off for numbers > greater than 10 :-) > > any assistance would be much appreciated. > > > > Tony Moss > > --------------------------------------------------- > > https://lists.uni-koeln.de/mailman/listinfo/sundial > > > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
