I'm a new user for TI89 and searching for Laplace transform & Inverse Laplace Transform app. I found someone recommend the app named "Advanced Laplace by Lars Frederiksen.

I tried to search & download from Internet, but could not find an active link to download.

So if anyone here has the app, could you please help share the app.

Thank you very much.

I did a quick google search and found this. Maybe it will be useful?

That's not what (s)he's looking for, though

I looked a bit around the Internet to find out which filenames I should be looking for, and on my local drive, but I don't seem to have that particular version of the Advanced Laplace from Lars Frederiksen... There are multiple sources for TI-68k Basic versions, and Nspire Basic versions, but "advlap_v1_4.zip", for instance, can't be downloaded from anywhere.

Like Samuel Stearley, Lars seem to be one of the programmers against third-party re-hosting of their content (or at least, against third-party re-hosters failing to keep up with upstream versions). End result, once again: their work has partially disappeared from public view, wasting users' time unsuccessfully tracking it down...

@ TIny_Hacker - thank you for your help. I tried that app, it works but inverse laplace transform for some function tooks very long time (more than 5 min) so I cancel it.

@Lionel Debroux - thank you for your help. Now I see why I could not find it. That’s really unfortunate.

So will just live with it, or perhaps someone who previously saved the apps can share me.