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How can I make a script perform calculations across multiple columns?

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pm4 on 9 May 2015
Edited: dpb on 10 May 2015
Hi all,
I've written a very simple script that calculates an angle from x,y coordinates located on an excel spreadsheet. The spreadsheet has time measurements in the first column, followed by x coordinates on the second column and y coordinates in the third. The script works great for this but I would like it to perform these calculations on a spreadsheet that may have for example, time on the first, x and y coordinates on the second and third respectively and subsequently have multiple sets of coordinates across different columns.
If anyone has any ideas on where to start or point me in the right direction I'd be extremely grateful.
Thank you

Accepted Answer

dpb on 10 May 2015
Edited: dpb on 10 May 2015
Read the spreadsheet into an array (I'll call it x for simplicity)...
Result is in radian, use atan2d for degrees...

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