How can I plot the graphs of matrices?

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Emin Kursat Dogray
Emin Kursat Dogray on 23 Dec 2020
Answered: Gouri Chennuru on 27 Dec 2020
Hello.
I'm just learning MATLAB. How can I graph a function that contains a matrix? Sorry about any inconveince.
For example;
A=[2 1;1 2]; %defining matrix A
b=[1;-1]; %defining matrix b
c=2; %defining c
f=@(x) 0.5*transpose(x)*A*x - transpose(b)*x + c ; %defining function f
x=[0;0]; %selecting a starting point
I want to see the global minimum and maximum.

Answers (1)

Gouri Chennuru
Gouri Chennuru on 27 Dec 2020
Hi,
You can make use of fplot function available in MATLAB in order to plot the function or expression.
In order to find the global maximum and global minimum you can refer to this link
Hope this helps!

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