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  1. #1
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    Post Using a formula instead of Goal Seek

    in this attached sheet input cells are B3,B4,B5,B6,B7, and as per formula there are many result cell . In result cell AH2 ,for required value i use goal seek every time. Can anyone help me to make AH2 as input and B6 as out put.
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    Maudibe (2016-03-05)

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    Hi Malka

    Welcome to the Lounge as a new poster.

    Unfortunately, it is not possible to do what you ask.
    For a given location, in a given time zone, on a specified date, you cannot ask "at what time will the sun's azimuth angle be xxx degrees".
    Because the sun is limited to pass through a restricted range of azimuth angles for that location and that date.
    For example, you cannot enter an azimuth angle of say, 75 degrees for your example location and date, and find out what time the sun will be there, because it will never get less than 97 degrees azimuth there.

    zeddy

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    Hi Malka

    ..but you could use a slider control to rapidly change the time (say, in increments of 1 minute).
    This will help you 'home in' on a particular azimuth angle.
    See attached file

    zeddy
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    Maudibe (2016-03-05)

  6. #4
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    Malka,

    To add to zeddy's points, cell B6 is not used directly in the formula in AH2 but rather used in many intermediate formulas that provide AH2 with calculated values to work on. You would need to reverse engineer most of your formulas then plan on contingencies (possibly conditional statements) to deal with circular references, division by zero errors, undefined results, infinity etc. caused by an invalid Azimuth angle that was entered. It may require creating a whole new separate set of calculations on another sheet or workbook

    You must also consider that multiple inputted values in B3:B7 may result in the same Azimuth angle but inputting the Azimuth angle may result in many combinations of B3:B7 or maybe not at all. ( a change in combinations from many-to-one to one-to-many)

    Brilliant piece of work here! I just wish I had the time to digest and interpret your formulas.

    Maud

    Nice job zeddy!

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