How to fix equation code error

2023 4 7
1 个回答
更新时间：2023 4 7
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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))

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Dyuman Joshi
Dyuman Joshi 2023-4-7
From equation standpoint, the formula is correct. Apart from what Steven has mentioned below, are you facing any other problem?
Torsten
Torsten 2023-4-7
编辑：Torsten 2023-4-7
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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回答（1 个）

Steven Lord
Steven Lord 2023-4-7
Ran in:

0 个投票

Ran in:
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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