Looking for help on graphing

3 visualizzazioni (ultimi 30 giorni)
Caleb Coombe
Caleb Coombe il 25 Giu 2021
Modificato: Nikhil Sapre il 25 Giu 2021
Hello,
I have this equation:
uSol(t) = (2*exp(-(5*t)/8)*(39*cos((39^(1/2)*t)/8) + 5*39^(1/2)*sin((39^(1/2)*t)/8)))/39
and I would like to graph it for t = 0 through 50. How can I do this?
Thank you!

Risposte (2)

Star Strider
Star Strider il 25 Giu 2021
One approach —
syms t
uSol(t) = (2*exp(-(5*t)/8)*(39*cos((39^(1/2)*t)/8) + 5*39^(1/2)*sin((39^(1/2)*t)/8)))/39
uSol(t) = 
figure
fplot(uSol, [0 50])
grid
.
  2 Commenti
Nikhil Sapre
Nikhil Sapre il 25 Giu 2021
Modificato: Nikhil Sapre il 25 Giu 2021
This is a better solution but the user will need to have Symbolic Math Toolbox to execute it.
Star Strider
Star Strider il 25 Giu 2021
My pleasure!

Accedi per commentare.


Nikhil Sapre
Nikhil Sapre il 25 Giu 2021
Modificato: Nikhil Sapre il 25 Giu 2021
Hi Caleb,
Please find an example of the code below.
t = linspace(0,50,51);
uSol = zeros(1,length(t));
for i = 1:1:length(t)
uSol(i) = (2*exp(-(5*t(i))/8)*(39*cos((39^(1/2)*t(i))/8) + 5*39^(1/2)*sin((39^(1/2)*t(i))/8)))/39;
end
plot(t,uSol);

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