t=var('t')
y1=function('y1',t)
y2=function('y2',t)
deq1=diff(y1,t)-y2-6*exp(2*t)
deq2=diff(y2,t)-y1+3*exp(2*t)
sol=desolve_system([deq1,deq2],[y1,y2],ics=[0,11,0])
sol

SageDays/Kreyszig-3.6-9 (last edited 2010-08-12 13:03:56 by PraveenKumar)