MATLAB: Fplot() for three functions

functionplot

I wonder why my fplot()s output errors instead of the graph below?

Best Answer

Try using limits, e.g.

fplot(@(t) 16/3*exp(-2*t)-4/3*exp(-8*t), [0 20]);

Also use

t.*exp(...etc)  not  t*exp(...etc)

Related Solutions

MATLAB: Plotting error: Need to plot the evolution of symbolic matrix

Try this:

PHI = @(t) [ 1, t, t/3-(2*exp(-3*t))/9+2/9, (2*t)/3+(2*exp(-3*t))/9-2/9;
    0, 1, (5*exp(-3*t))/12-(3*exp(t))/4+1/3, 2/3-exp(t)/4-(5*exp(-3*t))/12;
    0, 0, exp(-3*t)/4+(3*exp(t))/4, exp(t)/4-exp(-3*t)/4;
    0, 0, (3*exp(t))/4-(3*exp(-3*t))/4, (3*exp(-3*t))/4+exp(t)/4];
N = @(t) norm(PHI(t));
t = linspace(0, 1, 50);
for k = 1:numel(t)
    Nt(k) = N(t(k));
end
figure
plot(t, Nt)
grid

MATLAB: Fplot() runs Documentation Example with errors

Looks like you have a custom file called 'box.m' that is masking the original 'box.m' provided by MATLAB.

Run the following command to verify if there are multiple files with the same name:

which -all box

Remove the custom file or rename is and observe if the error persists.

Best Answer

Related Solutions

MATLAB: Plotting error: Need to plot the evolution of symbolic matrix

MATLAB: Fplot() runs Documentation Example with errors

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