Sine Of An Angle X By Summing An Infinite Series In VBA

Jul 18, 2006

i was set some work related to maths to be carried out in VBA. the problem for me is im finding it very hard to understand either and so i cannot seem to work out how to complete the assignment given.

i can attach the assignment to save space and time reading on here however if you would like me to post up the assignement i can do that too....

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The series 1,3,6,10,15,21,28,36 ("A" series) is the ongoing sum of 1+2+3+4+5+6+7+8 ("integers") and naturally goes on for as long as on chooses. I am only interested in the numbers up to 100.

Is there an Excel function that will allow me choose any integer as a starting point and any higher integer as an ending point and provide the sum of the "A" series associated with the two choices.

For example: If I begin at 6 and end on 12 it would give me 308 =28+36+45+55+66+78


00
11
23
36
410
515
621
728
836
945
1055
1166
1278
1391

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Is there a way to SUM the result of the followig for B4:J4 and B16:J16, the other cell references remain static:

=(B28*(P28^2-IF(ISNUMBER(B16),ABS(B4-B16)^2,B31)))

I a currently using the following which is rather lengthy and not efficient to maintain/edit:

=(B28*(P28^2-ABS(B4-B16)^2))+(B28*(P28^2-ABS(C4-C16)^2))+
(B28*(P28^2-ABS(D4-D16)^2))+(B28*(P28^2-ABS(E4-E16)^2))+
(B28*(P28^2-ABS(F4-F16)^2))+(B28*(P28^2-ABS(G4-G16)^2))+
(B28*(P28^2-ABS(H4-H16)^2))+(B28*(P28^2-ABS(I4-I16)^2))+
(B28*(P28^2-ABS(J4-J16)^2))

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Attached File : abcd.xlsx‎

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I have a problem with creating a spreadsheet.

I need a dialogue box, which asks the user the following:

* 1) Number of Plants
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I then need a table to show:

Along the top - The Number of Feeds (2)
Down the Side - The Number of Plants (1)

This is to show the amount of Potentially Hazardous material in each plant per day and also the amount of Potentially hazardous material in ALL the plants per day on the bottom line.

Simple? Well, my problem is that I need to create a loop which will work with the data potentially being infinite The Number of Plants (1), The Number of Feeds (2), could be anything from 1 to Infinity.

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Here's the other problem, I'm doing this in powerpoint so I'm not sure if cos or tan functions are loaded in this program. I am posting this in the xl forum because I figure that's where most of the people who could figure this out are. If this is in the incorrect forum I can try to move it,

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Distance equation --> distance between points A and B = sqr root of [(Ax-Bx)^2 + (Ay-By)^2 + (Az-Bz)^2]

This person (see the link) posted the excel equation, and I spent a long time trying to follow it, but can't make sense of it! [URL]

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Summary:

1. What is the excel equation to calculate the distance between two 3D coordinates (x,y,z)?

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Here is my code.

[Code] .....

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[Code] .....

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