Error with ode45

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Mohith S
Mohith S 2021년 5월 14일
답변: Star Strider 2021년 5월 14일
function dy = f(~,y)
% y=[9,100]; dont overwrite y
D=0.00000001;
F=96485;
Z=0.000000016;
R=0.08206*298;
C=0.05;
J=-((D*Z*F*C)/R);
dy = J.*y;
t=[0 5];
inity = 1;
[t,y]=ode45(@f, t, inity);
plot(t,y)
end
For this code im getting error like this,f(~, y)
f(~, y)
Error: Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.
Please help me to correct the code...

채택된 답변

Star Strider
Star Strider 2021년 5월 14일
Supply the ‘t’ argument even if the code does not use it.
Try this —
t=[0 5];
inity = 1;
[t,y]=ode45(@f, t, inity);
plot(t,y)
function dy = f(t,y)
% y=[9,100]; dont overwrite y
D=0.00000001;
F=96485;
Z=0.000000016;
R=0.08206*298;
C=0.05;
J=-((D*Z*F*C)/R);
dy = J.*y;
end
.

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