How to overcome this problem; Error using - Matrix dimensions must agree.

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Abba Alhaji Bala
Abba Alhaji Bala 2019-8-5
评论： KSSV 2019-8-6
Hello guys! please i need your input. i wanted to calculate an error using this equation
En =sqrt(((psi-p)^2)/psi^2); with psi having 108x108 double and p having 101x136 double dimensions. the error using - matrix dimesions must agree keep pupping.
i knew the two are of different dimensions, but i think if i use interpolation it will increase the error too. please is there any alternative method to make such calculation?

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KSSV
KSSV 2019-8-5
Two options:
Reduce dimensions
psi = psi(1:101,1:108) ;
p = p(1:101,1:108) ;
En =sqrt(((psi-p)^2)/psi^2);
Do interpolation
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Abba Alhaji Bala
Abba Alhaji Bala 2019-8-5
The first one worked but yet recieved another issue after running "Warning: Rank deficient, rank = 3, tol = 6.803137e-17. " and instead of a single value of En it came as a 101x101 complex

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