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excel algorithm help

  1. #1
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    excel algorithm help

    Hi All,

    I am currently looking for some help with a project, the project should do the following:

    cell B4,C4,D4 should pick a number 1-100, this should then give the MAX minimum value returned and MAX maximum total. - however, it will need to work out what values to put in this field to get the max MAX / max MIN.

    what would be the best way of going about this?


    I currently have a spreadsheet which will do the following:

    cell B3,C3,D3 have decimal numbers
    cell B4,C4,D4 have a figure (1-100)
    cell B6 =(B3*B4)+G6
    cell C6 =(C3*C4)+G6
    cell D6 =(D3*D4)+G6
    cell B7 =(B6-G7)
    cell C7 =(C6-G7)
    cell D7 =(D6-G7)
    cell G3 =MIN(B7,C7,D7)
    cell G4 =MAX(B7,C7,D7)
    cell G6 =MIN(50,MAX(B4,D4))
    cell G7 =(B4+C4+D4)

    IF B3 = 2.8, C3 = 3.5, D3 = 2.6
    AND B4 = 47, C4 = 50, D4 = 50

    then

    B6 = 181.6
    C6 = 225
    D6 = 170
    B7 = 34.6
    C7 = 78
    D7 = 33
    G3 = 33
    G4 = 78
    G6 = 50
    G7 = 147

    i need to try and calculate G3 and G4 to be the highest possible number.
    Last edited by Kyle1234; 12-19-2014 at 10:48 PM.

  2. #2
    Forum Guru Pete_UK's Avatar
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    Re: excel algorithm help

    If you attach a sample workbook, then you don't need to describe the contents of each cell - we could see that for ourselves, and you can point out in your file what you want to achieve. The FAQ describes how to attach a file to one of your posts.

    Hope this helps.

    Pete

  3. #3
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    Re: excel algorithm help

    Quote Originally Posted by Kyle1234 View Post
    I am currently looking for some help with a project, the project should do the following:

    cell B4,C4,D4 should pick a number 1-100, this should then give the MAX minimum value returned and MAX maximum total. - however, it will need to work out what values to put in this field to get the max MAX / max MIN.

    what would be the best way of going about this?
    I would use VBA to run through all possible values of B4, C4 and D4, if they are integers, and determine the combination that results in the max G3 and max G4 at the same time.

    It takes about 8 sec on my ancient computer to run through all 1 million combinations, doing all calculations in VBA. YMMV.

    I'm disinclined to share the VBA code, since this might be a homework assignment.

    (There might be a clever way to do this using Solver. I don't see it.)

    But I'm not sure I understand the requirement. Greater max G3 and max G4 can be derived separately from different combinations of B4, C4 and D4.

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