t = var('t')
y = function('y', t)
w = function('w', t)
p = function('p', t)
de1 = diff(y,t) == - 0.5*y - 0.9*p + 0.5*w
de2 = diff(w,t) == 1.0*p + 0.7*w
de3 = diff(p,t) == + 0.5*y - 0.3*w
desolve_system([de1, de2, de3], [y,p,w])
The function desolve_system stops with the error:
TypeError: unable to make sense of Maxima expression 'y(t)=ilt((200y(0)?g1090327^2+(-140y(0)+100w(0)-180p(0))?g1090327+60y(0)+54w(0)+226p(0))/(200?g1090327^3-40?g1090327^2+80?g1090327-83),?g1090327,t)' in Sage
Why? Thanks in advance!
