Kashfi

Last seen: 8 Monate vor | Aktiv seit 2025

Followers: 0 Following: 0

Statistik

Feeds

Frage

The problem is that when I use vpa(U(x,t), 7) to get the solution with 7-digit decimal precision, MATLAB still outputs a very long and complicated expression. how do I fix it?
clc clf syms x t u(x,t) u0 a1(t) a2(t) xmin = 0; xmax = 1; init_val = 5*exp(x); phi = [x^2-x, 3/2*x^3-3/2*x] %phi = [3*x-6*...

8 Monate vor | 2 Antworten | 0

2

Antworten

Beantwortet
Facing problems in nonlinear system
It seems that pdepe is unable to solve the problem, but I was able to obtain solutions using a numerical approach with the code....

9 Monate vor | 0

Beantwortet
Facing problems in nonlinear system
Thank you for your assistance. The code now provides solutions; however, I require numerical solutions in the form of tables, as...

9 Monate vor | 0

Frage

Facing problems in nonlinear system
%%%% Problem_01 %%%% %u_t=u_xx+6u(1-u)% %u(0,t)=(1+e^(-5t))^(-2)% %u(1,t)=(1+e^(1-5t))^(-2)% %u(x,0)=(1+e^x)^(-2)% clc; ...

9 Monate vor | 2 Antworten | 0

2

Antworten