find matrix X by equation

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Minh Phuong Truong
Minh Phuong Truong le 14 Fév 2022
Réponse apportée : KSSV le 14 Fév 2022
I have a matrix A (301*409), and the equation A=10^(-0.761-1.328X+0.283X^2). I would like to find matrix X, which each value in X >0. How can I do this in Matlab?
Many thanks

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KSSV
KSSV le 14 Fév 2022
Ran in:
You can solve the equation using symbolic toolbox to get X and then substitute A into the obtained solution.
syms a x
eqn = a-10^(-0.761-1.328*x+0.283*x^2)==0
eqn = 
s = solve(eqn,x)
s = 
In the above equation substitute A.

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