By the way Chestermiller, I tried following your work and I was able to follow along for the most part. However, one step you did that i cannot figure it out how you did it is the third step.
How do you go from: 269.0=R1∗(R1+R2+R3+R4−R1)/(R1+R2+R3+R4)
To: 269.0= R1− (R1)^2/(R1+R2+R3+R4)
I checked your formula with different values for L's and compared with the MATLAB code and it is actually pretty accurate.
In fact, with this formula I can make a spreadsheet on excel which is much more user friendly. Thank you Chestermiller!
Thank you all for all the inputs. This problem is for a strain gage with values in a closed bridge with 4 measurements (for those who were curious what this problem was about).
Here's how I was able to solve it using Matlab:
>>equ1='269.0-R1*(R2+R3+R4)/(R1+R2+R3+R4)'...
Thank you for all the response.
Using Matlab to solve, I think this is what the code would be:
[R1,R2,R3,R4]=solve('R1=269.0(R2+R3+R4)/(R2+R3+R4-269.0)','R2=267.8(R1+R3+R4)/(R1+R3+R4-267.8)','R3=268.8(R1+R2+R4)/(R1+R2+R4-268.8)','R4=267.3(R1+R2+R3)/(R1+R2+R3-267.3)','R1','R2','R3','R4')...
Homework Statement
Hello,
Although this could be labeled as an EE problem, this is more of an Algebra problem. Anyways, I am having a very hard time solving for the following 4 equations with 4 unknonws.
269.0 = R1*(R2+R3+R4)/(R1+R2+R3+R4)
267.8 = R2*(R1+R3+R4)/(R1+R2+R3+R4)...