Am 20. September 2020 16:41:56 MESZ schrieb "hans w. koch" 
<hansw.k...@gmail.com>:
> yeah, this is consistent with my findings too…
> it just mystifies me, why writing the contents of [text] containing
> symbols to a .txt file and reloading converts them silently back to
> floats, perserving precision.
> seems like the .txt file format does some behind-the-scenes magic.


hmm, no.
the behaviour you are seeing is exactly because [text] does NOT do any behind 
the scenes magic.

all the problems come from the fact that the default string-representation (and 
only the string-representation) of numbers is too coarse for double-precision.


mfg.hft.fsl
IOhannes


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