Hi @taylor13 and @davidhassell, I am not fully up to date on the data types, but following the links that David sent, it appears that decimal64 is a base-10 floating-point number representation that _is intended for applications where it is necessary to emulate decimal rounding exactly, such as financial and tax computations._ I think we can disregard that for now.
binary32 and binary64 are the new official IEEE 754 names for what used to be called single- and double-precision floating-point numbers respectively, and is what most of us are familiar with. I would suggest that we do not require a specific floating-point arithmetic standard to be used, but more a level of precision. If we adopt the naming convention proposed by David, it could look like: By default, the user may use any floating-point arithmetic precision they like for the interpolation calculations. If the `computational_precision `attribute has been set then the precision should match or exceed the precision specified by `computational_precision `attribute. The allowed values of `computational_precision ` attribute are: (table) `"32":` 32-bit base-2 floating-point arithmetic, such as IEEE 754 binary32 or equivalent `"64"`: 64-bit base-2 floating-point arithmetic, such as IEEE 754 binary64 or equivalent I think that would archive what we are after, while leaving the implementers the freedom to use what their programming language and computing platform offers. What do you think? -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://urldefense.us/v3/__https://github.com/cf-convention/cf-conventions/issues/327*issuecomment-841811319__;Iw!!G2kpM7uM-TzIFchu!kJqTO5JRkCbffwObaYvfMMczn6itdbv8uviCjgc6I6zF97V87xaKVldzmU2HHfvdZ9sO9MQH2ZE$ This list forwards relevant notifications from Github. It is distinct from cf-metad...@cgd.ucar.edu, although if you do nothing, a subscription to the UCAR list will result in a subscription to this list. To unsubscribe from this list only, send a message to cf-metadata-unsubscribe-requ...@listserv.llnl.gov.
