Read our docs for more details

Frequently Asked Questions

If you can't find an answer to your question here or in the docs, feel free to contact us.


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What is standard support?
We can help you with installation and licensing issues. We also put any glitches into our work queue but how we prioritize that queue is at our discretion.
What is priority support?
Requests from priority support customers typically have must faster resolution times. Furthermore, it includes up to 3 hours of walkthroughs and deployment which can be held over phone or TeamViewer.
Why do you have different support tiers?
In an ideal world we would offer all our customers elevated levels of engagement and support. But in reality that is simply not possible. We started offering a higher tier of support after some customers requested that they wanted peace of mind and quick turnaround times.
Do you offer subject matter support?
No we do not. Although we can share our thoughts with priority support customers where we can, we expect the customer to be the domain specialist.
Why don't you support Office365 and MacOS?
From a software architecture standpoint, there is quite a large difference between the desktop version and a mostly web based workflow that Office365 and MacOS necessitate. We find it ironic that as personal computers become more powerful, the software giants seem to be forcing a web based computational model on everyone. We'll leave it to you to speculate as to why.
Do you have a DUNS number?
Yes we do. If you are a governmental entity we are able to do business with you.
Do you use LGPL software?
There is only one library that we use which is LGPLv3 but with a static linking exception. In effect, it makes it much like the MPL2 license which in fact the ZMQ community is trying to move to. Furthermore, we do not modify ZMQ itself in any way. You can read more about it at this link: Furthermore, the ZMQ license itself states that "this exception relieves you of any obligations under sections 4 and 5 of this [LGPLv3] license, and section 6 of the GNU General Public License." You can read more about that here:


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Can you tell me more about billing?
We use Stripe as a payment processor and all your transaction details are handled by them.
What is your refund policy?
If you are unhappy with your purchase for any reason, contact us within 30 days and we'll issue you a refund no questions asked.


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Do I need to be online for the license to work?
No. Currently licensing does not rely on contacting a remote server. We'll send you a license file based on your hardware fingerprint.
Can you describe your licensing mechanism?
After checkout, you will be asked to enter your Machine ID which can be found in the Parietal Numerics console. This is what we generate as your hardware fingerprint. Then we'll send you an encrypted license key tied to this ID that you will place in your install folder.
Will my license still be valid if I change machines or do a hardware upgrade?
We can resend you a license tied to the new hardware. This is no problem at all. Just fill out the form on the Contact page.


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What are the minimum requirements?
Windows 7, 8 and 10. As for Office versions, you will need a desktop version 2010 and onwards.
Are Office365 and MacOS supported?
Not currently. We are planning on supporting those platforms and it is a priority of ours.


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Why do you have to have a separate engine? Can't you do calculations within Excel?
In our opinion, numerical code is better suited for C++. In addition, modern C++ offers concurrency primitives that weren't available previously. At the same time, C# is great for writing UIs. This way you get the best of both worlds and why this software is so unique in its class.
I am interested in AVX2 binaries. Where can I get those and how much faster are they?
If you are a paying customer, send us a message via the Contact page and we'll send you a link. The speedup depends on the algorithm and use case. On some chips that we have tested, we actually observed a slowdown.
Why don't you offer AVX2 by default?
AVX2 is supported by somewhat newer processors which not all users have. Furthermore, a speedup is not guaranteed on all cpus. AVX2 binaries will also flat out refuse to run on non-supported processors without any hint as to why. This can be confusing to users and can leave a permanently bad impression. So we decided not to make it the default choice.
What languages are used to write the software?
The core engine is written mostly in C++17. The Excel front-end is written in C#.