Question: How to find triple numerical inverse Laplace transform?

I have the following fuction in Laplace domain,



Where, s1, s2, s3 are the Laplace variables.

x1:=invlaplace(u, s1, x);

This worked. But the next two doesn't work.

y1:=invlaplace(x1, s2, y);

uu:=invlaplace(y1, s3,t);

Even, I tried to plot the unevaluated invlaplace but no luck.

plot3d(uu,x =1..2, y=1..2);

Am I missing something?


Please Wait...