15. Metoda konÄnih elementov in reÅ¡evanje BDE in PDE v Matlabu
15. Metoda konÄnih elementov in reÅ¡evanje BDE in PDE v Matlabu
15. Metoda konÄnih elementov in reÅ¡evanje BDE in PDE v Matlabu
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Matlab implementacija za zgled 1<br />
function [c,f,s] = wavepde(x,t,u,ux)<br />
c = 1;<br />
f = ux;<br />
s = 0;<br />
function [pa,qa,pb,qb] = wavebc(xl,ul,xr,ur,t)<br />
pa = ul;<br />
qa = 0;<br />
pb = ur-1;<br />
qb = 0;<br />
function y = wave<strong>in</strong>i(x)<br />
y = 2*x/(1+x^2);<br />
m = 0;<br />
x = l<strong>in</strong>space(0,1,20);<br />
t = l<strong>in</strong>space(0,2,10);<br />
u = pdepe(m,@wavepde,@wave<strong>in</strong>i,@wavebc,x,t);<br />
surf(x,t,u);<br />
Bor Plestenjak - Numerična analiza 2005/06