The ~g format
Anthony Shipman
als@REDACTED
Wed May 5 12:20:34 CEST 2010
Why do these differ?
34> lists:flatten(io_lib:format("~.2g", [23.223466])).
"2.3e+1"
35> lists:flatten(io_lib:format("~.2f", [23.223466])).
"23.22"
36> lists:flatten(io_lib:format("~.3g", [23.223466])).
"23.2"
The manual says:
"If the absolute value of the float does not allow it to be written in the
f format with the desired number of significant digits, it is also written in
the e format."
and that is probably what is happening but I can't match that to the behaviour
of the code. In the first case is it trying to avoid writing "23." or
just "23"?
This is in R12B04
--
Anthony Shipman Mamas don't let your babies
als@REDACTED grow up to be outsourced.
More information about the erlang-questions
mailing list