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Hi Forum,

I wrote a spreadsheet to calculate distance and azimuth on ellipsoid sphere using T Vincenty formula. Input coordinates of two locations in lat-lang then the distance and its azimuth will be calculated accordingly.

I applied "Name Manager" to wrote The vincenty formula instead of vba-excel.

Since the formula deals with iterative calculation, please set your excel to "enable iterative calculation". If you miss this setting, excel will notify you an error 'circular reference'

as usual, i also post in my blog in 'bahasa indonesia'

warm regards from indonesia


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  • oops!

    i missed the attachment while posting. please find the file as attached.


  • Hello zainul,


    I'm interested in your spread sheet. Is it posted?


    I'm also working on a spread sheet that calculates Grid Azimuth for Lambert Conical Projection and Transverse Mercator. Your input would be appreciated.


    Thanks, Paul

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