how to write the boundary values for ode

2022 2 25

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i have the boundary values like

a(0)=1, a'(1)=0

and

b(1)=1, b'(0)=0

is this following code correct for my boundary

function [pl,ql,pr,qr] = pdex4bc(~,ul,~,ur,~)
pl = [ul(1)-1;0];
ql = [0;1];
pr = [0;ur(2)-1];
qr = [1;0];

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Torsten 2022-2-25

编辑：Torsten 2022-2-25

If f = DuDx and a=u(1), b=u(2), this should be correct.

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