1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
function wpar=do_setup(wpar)
// set integration parameters
// Copyright INRIA
if wpar(4)==[] then wpar(4)=100000;end
if wpar(3)==[] then wpar(3)=[1.d-4,1.d-6,1.d-10,wpar(4)+1];end
tolerances=wpar(3);
tf=wpar(4)
atol=tolerances(1);rtol=tolerances(2);ttol=tolerances(3);deltat=tolerances(4)
while %t do
[ok,tf,atol,rtol,ttol,deltat]=getvalue('Set parameters',[
'Final integration time';
'Integrator absolute tolerance';
'Integrator relative tolerance';
'Tolerance on time'
'deltat'],..
list('vec',1,'vec',1,'vec',1,'vec',1,'vec',1),..
[string([tf;atol;rtol;ttol;deltat])])
if ~ok then break,end
if or([tf,atol,rtol,ttol,deltat]<=0) then
message('Parameter must be positive')
else
wpar(3)=[atol;rtol;ttol;deltat]
wpar(4)=tf
break
end
end
|
