File: ode1.dem

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scilab 2.4-1
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// Copyright INRIA
// Simple Example
 mode(1)
 xbasc();
// ODE definition
 deff('[xd]=lin(t,x,a)','xd=a*x')
 a=[1 1;0 2];
// Integration and comparison with exp
 ea=ode(eye(2,2),0,1,list(lin,a)),expm(a)
// New integration with another a
 t=0:0.1:3;
 ee=ode(1,0,t,list(lin,1));
// Visualization
 plot2d1("onn",t',ee',(1:2),"121",'x1@x2');
 xtitle('dx=a*x','t',' ')