How do I find sin of a cell variable (el)?

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Tunde Adubi
Tunde Adubi 2022-5-5
评论： Walter Roberson 2022-5-6
Assuming el is cell variable with a matrix of 30 X 3300 being rows and colums.
for PRN =1:30
for t = 1:3300
M_d(PRN,t)= 1/(sin(el(PRN,t))+(0.00143/tan(el(PRN, t))+0.0445));
M_w(PRN, t)=1/(sin(el)+(0.00035/tan(el)+0.017));
end
end
The error i had.
Check for incorrect argument data type or missing argument in call to function 'sin'.
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Tunde Adubi
Tunde Adubi 2022-5-5
Oh, it worked. Thanks for pointing that out.
Walter Roberson
Walter Roberson 2022-5-6
Could you confirm that each entry in the cell is a numeric scalar? Your code will fail otherwise.
If it is a numeric scalar then use cell2mat and simple vectorized numeric calculations. Remember to switch from / to ./

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回答（1 个）

Davide Masiello
Davide Masiello 2022-5-5
If the value is stores in a cell, then you should write
el{PRN,t}
in order to extract the value as a double.

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