Distance calculations
 

I am trying to get a formula to produce a distance in feet
Example:
A B C
X corrd y corrd
1 6806.9 1680.62
2 7243.67 1509.92 (Dist. Between a1 & a2)
3 6751.07 1319.53 (Dist. Between a2 & a3)

The numbers are X & Y Coordinates for devices in a CAD program.

I have a formula that I was trying: (ABS(A1-A2)+ABS(B3-B2))/12)
But the results dont match to the distance in the CAD drawing. Or, are my
math skills that bad???

Distance calculations
 

Assuming Column A is the "X" coordinates of points and Column B is the "Y"
coordinates of the same points, as you have them, then the straight line
distance
between the two points, rows 1 and 2, is the hypotenuse of a right triangle
as follows:
One leg is Abs(A2-A1)
The other leg is Abs(B2-B1)
The hypotenuse is the square root of the sum of the squares of the other two
sides.
The hypotenuse is (((Abs(A2-A1))^2 + (Abs(B2-B1))^2)^.5)/12
HTH Otto
"not bright" <not wrote in message
...
I am trying to get a formula to produce a distance in feet
Example:
A B C
X corrd y corrd
1 6806.9 1680.62
2 7243.67 1509.92 (Dist. Between a1 & a2)
3 6751.07 1319.53 (Dist. Between a2 & a3)

The numbers are X & Y Coordinates for devices in a CAD program.

I have a formula that I was trying: (ABS(A1-A2)+ABS(B3-B2))/12)
But the results don't match to the distance in the CAD drawing. Or, are my
math skills that bad???

Distance calculations
 

I am sure that you are very bright, maybe a little forgetful:

Remember Pythagoras

D=sqrt((x1-x2)^2+(y1-y2)^2))
--
Gary's Student


"not bright" wrote:

I am trying to get a formula to produce a distance in feet
Example:
A B C
X corrd y corrd
1 6806.9 1680.62
2 7243.67 1509.92 (Dist. Between a1 & a2)
3 6751.07 1319.53 (Dist. Between a2 & a3)

The numbers are X & Y Coordinates for devices in a CAD program.

I have a formula that I was trying: (ABS(A1-A2)+ABS(B3-B2))/12)
But the results dont match to the distance in the CAD drawing. Or, are my
math skills that bad???

Distance calculations
 

Thanks alot

does it matter which one is first (x1-x2 or x2-x1)

"Gary''s Student" wrote:

I am sure that you are very bright, maybe a little forgetful:

Remember Pythagoras

D=sqrt((x1-x2)^2+(y1-y2)^2))
--
Gary's Student


"not bright" wrote:

I am trying to get a formula to produce a distance in feet
Example:
A B C
X corrd y corrd
1 6806.9 1680.62
2 7243.67 1509.92 (Dist. Between a1 & a2)
3 6751.07 1319.53 (Dist. Between a2 & a3)

The numbers are X & Y Coordinates for devices in a CAD program.

I have a formula that I was trying: (ABS(A1-A2)+ABS(B3-B2))/12)
But the results dont match to the distance in the CAD drawing. Or, are my
math skills that bad???

Distance calculations
 

Since you are squaring the order is unimportant.
3-5 = -2 and -2^2 =4
5-3 = 2 and 2^2 =
best wishes
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"not bright" wrote in message
...
Thanks alot

does it matter which one is first (x1-x2 or x2-x1)

"Gary''s Student" wrote:

I am sure that you are very bright, maybe a little forgetful:

Remember Pythagoras

D=sqrt((x1-x2)^2+(y1-y2)^2))
--
Gary's Student


"not bright" wrote:

I am trying to get a formula to produce a distance in feet
Example:
A B C
X corrd y corrd
1 6806.9 1680.62
2 7243.67 1509.92 (Dist. Between a1 & a2)
3 6751.07 1319.53 (Dist. Between a2 & a3)

The numbers are X & Y Coordinates for devices in a CAD program.

I have a formula that I was trying: (ABS(A1-A2)+ABS(B3-B2))/12)
But the results don't match to the distance in the CAD drawing. Or, are
my
math skills that bad???

i am trying tio get distances of 130 varieties with 5 samples each, and the number of parameters are 9, please tell me how i find the mahalanobis distance in excell, i follow the book of Nadranjan (2005),

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