Addition, multiplication, divison and subtraction of error

  • B
  • Thread starter Apashanka
  • Start date
  • #1
429
15
If given two variable of the form p=x±δx and q=y±δy where δx and δy are the error obtained while measuring p and q and x and y are it's absolute value obtained.
We define R=p+q,p-q,p/q,pq
In each of this case I want to know what will be the error in R.(e.g δR)
Thank you
 

Answers and Replies

  • #3
35,135
6,884
We define R=p+q,p-q,p/q,pq
Mathematically, this doesn't make much sense. I get what you're trying to say, but R can't simultaneously be the sum, difference, product, and quotient of two values.
 
  • #4
mathman
Science Advisor
7,956
498
Mark44: I believe the question is for .four cases.
 
  • #5
35,135
6,884
Mark44: I believe the question is for .four cases.
Yes, I understand that, but IMO R=p+q,p-q,p/q,pq is an abuse of notation where there is no explanation that this is shorthand.
 

Related Threads on Addition, multiplication, divison and subtraction of error

Replies
9
Views
9K
Replies
14
Views
1K
  • Last Post
Replies
10
Views
3K
Replies
5
Views
3K
  • Last Post
Replies
4
Views
777
Replies
6
Views
6K
  • Last Post
2
Replies
26
Views
5K
  • Last Post
Replies
20
Views
15K
Top