Graph each side of the equation

4.231r=e^(-0.17232465r)

How to find r value? The soultion should be the point of intersection but, how to graph each side using MATLAB?

Answer 1

[Akira Agata]

How about using fzero function? The following is an example:

% fnc = (left side) - (right side)
fnc = @(x) 4.231*x - exp(-0.17232465*x);

% Visualize the fnc
figure
fplot(fnc)

Since it has a root between -5 ~ +5:

x0 = fzero(fnc,[-10 10]);

Then, the root is found to be:

>> x0

x0 =

0.2273

Answer 2

[Sulaymon Eshkabilov]

Hi

To find the value of r use: solve() in symbolic math or write a small code with the Newton Raphson method.

To plot bothe side of the equation, use a certain range of r and then plot.