Q & A
Please click the Support button (or click here)
for technical support page
PSI-Plot and ProStat share a lot common parts in data analysis and plotting, but each of them has
its own emphases. For data analysis part, PSI-Plot is targeting for more generic mathematical problems
such as algebraic equation solver, matrix manipulation, ordinary differiential equation (ODE) solver,
difference equation solver, and digital signal processing; while ProStat aims at advanced statistical
analysis (click here to see the highlighted features). For plotting part,
both programs do the same for 2D and 3D Cartesian coordinate system. But PSI-Plot does support other
special coordinate systems as well. Such as polar system, spherical system, cylindrical system, ternary,
PSI-Plot has been Y2K ready since its version 5.50.
ProStat has been Y2K ready since its version
Both PSI-Plot and Prostat support network. By default, the software we will ship is single user version.
If you will purchase network version, you need specify how many site license you need. We ship the network
version to our software license holder only.
Poly Software International carries 30 days No-Question-Will-Be-Asked return policy for both PSI-Plot
and ProStat. For any reason, if you are not satisfied with the software you purchased. You can simply
send back the software and ask for full refund (at purchasing price) in 30 days.
We accept Purchase Order from institutes. For companies, we accept Purchase Order only if your company
has an account setup with us or software upgrades (or returned customers). For all Purchase Order, a
hardcopy of your Purchase Order Form (via fax or mail) with your accounts payable information (phone,
address) must be enclosed.