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| Hi Ricardo, Have you tried to re-express the Dataset object using Tabular, new in WL 14.2 ? Tabular is usually much more efficient in storage, because it uses special ways to encode the different types of columns, say dates or strings. Even if... |
| &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/77f46df1-6c07-455e-a209-7b3d7ca9c1fe |
| ![Beltane celebration, the Goseck circle and the solar calendar. Aerial view of the Middle Neolithic circular enclosure of Goseck. State Office for Heritage Management and Archaeology Saxony-Anhalt][1] *Image Credit: Aerial view of the Middle... |
| I would suggest to extract the data and then manipulate it in GeoGraphics as you want. For example: data = Import["https://www.gloriouslyawkward.com/wp-content/uploads/2025/03/2025-03-26-225828-Outdoor-Walking-Stevens-Apple-Watch.gpx",... |
| ![Today is New Year's Day in the Chinese calendar][1] &[Wolfram Notebook][2] [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=Image20250129195114.png&userId=20103 [2]:... |
| There is a related discussion in https://mathematica.stackexchange.com/questions/191373/what-is-the-definition-of-curl-in-mathematica The key point is that in Wolfram Language we use a definition based on Hodge duality. |
| Thank your for your interest in xAct, Christian! Try this alternative link: [xAct LiveStream notebook][1] , or use the "Get this notebook" button at the end of the main post in this thread, then selecting "Download to desktop". [1]:... |
| Thank you for your suggestions. Simplification of symbolic array expressions is currently being greatly improved for version WL 14.2. We will explore the type of computation you propose. |
| Riccicd[-a, -b] is a symbolic object, like Riccilc[-a, -b]. You have a rule that relates two tensors, the Christoffels, but xTensor will not attempt to compute relations for other tensors. This would be difficult, and depend on assumptions about... |
| Yes, Mollweide is also a good choice, indeed. Thanks for the new maps! |