Toward an API for the real numbers

[Wes Loewer]

(10-07-2020 05:40 PM)robve Wrote:  A quick demo in Excel:

My go-to demo for things like this is (4/3-1)*3-1. The result indicates the base and the precision used.

-1e-11 Prime Home
-2^-46 Prime CAS (non-exact)
-1e-13 TI Nspire (non-exact)

-2^-52 Google Sheets, LibreOffice [requires RAWSUBTRACT], Excel [requires redundant parenthesis ((4/3-1)*3-1) ]
+2^-63 Lotus Improv (1990's, coolest spreadsheet ever)