help: selecting rows within an equation
 

I am working on a program that uses the distance formula.
Example:
=SQRT((B8-B7)^2+(C8-C7)^2)

I need to find a way to substitute variables for the cell locations.
B C
X and Y
7. 64.4 25.5
8. 65.4 24.9
9. 73.6 23.5
10. 39.5 96
11. 19.5 33.6
12. 25.5 98

Reference X and Y
12.2 13.6

The Loop im trying to create will take the Reference X and Y and plu
it into the distance equation along with the first X and Y in the char
which is B7 and C7. That result will be outputed. The program with the
take the next X and Y in the chart and calculate it with the sam
reference. this loop with continue until it reaches the end of th
chart.

If anyone has any suggestions on how to do this please let me know.

Thanks
Nic

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Message posted from http://www.ExcelForum.com

help: selecting rows within an equation
 

Hi
why not put the following formula in D7:
=SQRT((B8-B7)^2+(C8-C7)^2)

-----Original Message-----
I am working on a program that uses the distance formula.
Example:
=SQRT(($E$1-B7)^2+($F$1-C7)^2)

and copy down. Where E1 and F1 store your reference values


I need to find a way to substitute variables for the cell
locations.
B C
X and Y
7. 64.4 25.5
8. 65.4 24.9
9. 73.6 23.5
10. 39.5 96
11. 19.5 33.6
12. 25.5 98

Reference X and Y
12.2 13.6

The Loop im trying to create will take the Reference X
and Y and plug
it into the distance equation along with the first X and
Y in the chart
which is B7 and C7. That result will be outputed. The
program with then
take the next X and Y in the chart and calculate it with
the same
reference. this loop with continue until it reaches the
end of the
chart.

If anyone has any suggestions on how to do this please
let me know.

Thanks
Nick


---
Message posted from http://www.ExcelForum.com/

.

selecting rows within an equation
 

Nick,
The following is a possible VBA solution which may get you going.

Sub Table()
Dim Rw, Res
Dim x1, y1, x2, y2
x1 = 12.2
y1 = 13.6
Rw = 7
Do
x2 = Cells(Rw, 2): y2 = Cells(Rw, 3)
Res = Sqr((x2 - x1) ^ 2 + (y2 - y1) ^ 2)
Cells(Rw, 4) = Res
x1 = x2
y1 = y2
Rw = Rw + 1
Loop Until Rw 12
End Sub

x1 znd y1 are set initially to the reference values.
The results of the calc. show in column 4

Hope that helps a bit.

Regards,
Don

"woknick " wrote in message
...
I am working on a program that uses the distance formula.
Example:
=SQRT((B8-B7)^2+(C8-C7)^2)

I need to find a way to substitute variables for the cell locations.
B C
X and Y
7. 64.4 25.5
8. 65.4 24.9
9. 73.6 23.5
10. 39.5 96
11. 19.5 33.6
12. 25.5 98

Reference X and Y
12.2 13.6

The Loop im trying to create will take the Reference X and Y and plug
it into the distance equation along with the first X and Y in the chart
which is B7 and C7. That result will be outputed. The program with then
take the next X and Y in the chart and calculate it with the same
reference. this loop with continue until it reaches the end of the
chart.

If anyone has any suggestions on how to do this please let me know.

Thanks
Nick


---
Message posted from http://www.ExcelForum.com/

help: selecting rows within an equation
 

Thanks for the help, that solution works great.

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Message posted from http://www.ExcelForum.com