Homestudy translation help

  • Thread starter Scott S
  • Start date
  • #1
22
0
Sorry, 30 years since college and I wasn't awake all the time.
I'm trying to translate the symbology in the attached pics.
Some of the super/subscripts are throwing me off in formulae 13, 14 and 15.

Y and X = planar coordinates of points.
n = number of points.
σβ = standard error of angle observation.
σs = standard error of distance observation.
Σ = the sum in parenthesis.
Si = sum of distances.

The parenthesis are the problems.
Would Xn equal the last coordinate and Xi-1 each proceeding coordinate, so that I should sum the final minus each proceeding X?
traverse closure 1.jpg


The same formulae in 3-91.
traverse closure 2.jpg
 
Last edited by a moderator:

Answers and Replies

  • #2
Ray Vickson
Science Advisor
Homework Helper
Dearly Missed
10,706
1,728
Sorry, 30 years since college and I wasn't awake all the time.
I'm trying to translate the symbology in the attached pics.
Some of the super/subscripts are throwing me off in formulae 13, 14 and 15.

Y and X = planar coordinates of points.
n = number of points.
σβ = standard error of angle observation.
σs = standard error of distance observation.
Σ = the sum in parenthesis.
Si = sum of distances.

The parenthesis are the problems.
Would Xn equal the last coordinate and Xi-1 each proceeding coordinate, so that I should sum the final minus each proceeding X?
View attachment 96281

The same formulae in 3-91.
View attachment 96282
For example:
[tex] \begin{array}{l}\sum_{i=1}^n \left( \frac{X_i - X_{i-1}}{S_i} \right)^2\\
= \left(\frac{X_1-X_0}{S_1}\right)^2 + \left(\frac{X_2 - X_1}{S_2}\right)^2 + \cdots + \left( \frac{X_n - X_{n-1}}{S_n}\right)^2
\end{array}[/tex]
Is that what you were uncertain about?
 
  • #3
22
0
Yes!
Thank you.
 

Related Threads on Homestudy translation help

  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
9
Views
7K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
3
Views
7K
Replies
5
Views
753
  • Last Post
Replies
1
Views
5K
Replies
17
Views
3K
Replies
1
Views
746
Replies
2
Views
2K
  • Last Post
Replies
1
Views
1K
Top