Solve for an implicitly defined variable

2 views (last 30 days)
Thomas Ward
Thomas Ward on 20 Apr 2018
Answered: Walter Roberson on 20 Apr 2018
How do I use matlab to solve for an implicitly defined variable? For example
x=0.6953*ln(115/(215-x))-100

Sign in to answer this question.

Accepted Answer

Walter Roberson
Walter Roberson on 20 Apr 2018 
syms x
vpasolve(x==0.6953*log(115/(215-x))-100)

There is a second solution, which is approximately 215 - -2.02E-195 . However, you cannot round that to 215: if you do round it then you would get a division by 0.

More Answers (0)

Categories

Find more on Mathematics in Help Center and File Exchange

Tags

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!