MATLAB Answers

How can I plot the difference of the solution of two differential equations vs time?

조회 수: 15(최근 30일)
Joely Depoy
Joely Depoy 2 Oct 2019
답변: Yogesh Khurana 16 Oct 2019
syms x(t)
ode = diff(x,t) == (((1/x))-1)*(1/sqrt(x));
cond = x(0) == 2;
xSol(t) = dsolve(ode,cond)
syms y(t)
ode = diff(y,t) == (2*((1/y))-1)*(1/sqrt(y));
cond = y(1) == 2;
ySol(t) = dsolve(ode,cond)
t= 0:0.1:10;
fplot(xSol(t)-ySol(t),t)

답변(1개)

Yogesh Khurana
Yogesh Khurana 16 Oct 2019
Hi,
Difference in the solutions of two differential equations can be obtained by using diff command in MATLAB. Afterwards you can use plot function and provide the arguments properly.
In case of some missing data in some of the timestamps in any of the differential equation’s solution, you can use interpolation.
Documentation link:
You can find some more details in the solution posted in the below link:
Hope this helps!

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