On Tue, Apr 08, 2008 at 01:56:24PM -0700, Gautam Iyer wrote:
>>> One of the items I planned to discuss is why Vim has no floating point
>>> support. Well, this turned into actually implementing it.
>>>
>>> The main problem with floating point is that the usual notation already
>>> has a meaning:
>>>
>>> echo 123.456
>>> 123456
>>>
>>> That is because "." is the concatenation operator, and numbers are
>>> automatically converted to strings.
>>>
>>> I considered a few alternatives:
>>>
>>> 123,456 used for function arguments
>>> float("123,456") too verbose
>>> #123.456 has a meaning after == and !=
>>> $123.456 confusion with $ENV
>>>
>>> The best I could think of was &123.456. It's a bit obscure, you need to
>>> get used to it. But it works.
>>>
>>> echo &123.456e-3
>>> 0.123456
>>>
>>> Feel free to suggest something better, but make sure it doesn't already
>>> mean something in any context in Vim script.
>>
>> How about just adding an "f" at the end of the number?
>>
>> echo 1.23f
>>
>> This doesn't seem to mean anything to Vim currently. (I get an error
>> when I try and echo it).
>
> I forgot to mention: Also
>
> echo 1.23e-3
>
> can be used for the E notation. (The trailing f is not necessary).
Oops. My bad.
:set f=1
:echo 1.23f
123 1
GI
--
Pentium of Borg: Division is futile - your decimals will be
approximated.
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