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How to fix equation code error

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Cesar Cardenas
Cesar Cardenas on 7 Apr 2023
Edited: Torsten on 7 Apr 2023
I would like to know if I'm coding this equation correctly?? I'm getting a error. Any help will be appreciated. Thanks.
nu = 1.5e-5;
ya = 9.7;
k = 0.41;
y = 2.3025e-03;
uT = (k.*rho.*nu).*((y.*ustar/nu) - ya.*tanh((y.*ustar/nu)/ya))
  2 Comments
Dyuman Joshi
Dyuman Joshi on 7 Apr 2023
From equation standpoint, the formula is correct. Apart from what Steven has mentioned below, are you facing any other problem?
Torsten
Torsten on 7 Apr 2023
Edited: Torsten on 7 Apr 2023
We are full of expectation to see the error message and the values of rho and ustar to evaluate the expression for uT.

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Answers (1)

Steven Lord
Steven Lord on 7 Apr 2023
nu = 1.5e-5;
ya = 9.7;
k = 0.41;
y = 2.3025e-03;
uT = (k.*rho.*nu).*((y.*ustar/nu) - ya.*tanh(y.*ustar/nu.*ya))
Unrecognized function or variable 'rho'.
Nowhere in this code do you define the variables rho or ustar.

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