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| GeoCommunity Mailing List |
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| Subject: | [gislist] Trig function problems with spreadsheets |
| Date: |
09/27/2006 09:40:00 AM |
| From: |
Lawrence Hartpence |
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Hello,
This is kind of an odd question.
I had a line which I knew the angle and the distance. I wanted to calculate
the delta x and the delta y using trig functions. I found that using the
sine and cosine functions in my spreadsheet produced wrong results. I used
a scientific calculator and received right results. Does anyone know why
the difference?
Example: Spreadsheet says sine of 89.1712056 is .934414355, scientific
calculator says 0.999895380.
Thanks,
Lawrence Hartpence
GIS Coordinator
101 1st St N0
Newton IA 50208
641-792-3084
hartpence_gis@co.jasper.ia.us
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