//signals and systems
//Unilateral  Laplace Transform:Solving Differential Equation
//example 4.30
s= %s;
syms t;
[A] = pfss((-1)/((s-1)*(s+2)));
F1 = ilaplace(A(1),s,t)
F2 = ilaplace(A(2),s,t)
//F3 = ilaplace(A(3),s,t)
F = F1+F2
disp(F)