[Newbies] How to round a float?

[Johann Hibschman]

That just looks like floating-point representation. It's as rounded as it
can get!

-Johann

On Wed, Feb 4, 2015 at 6:22 AM, Chuck Hipschman <ckhipschman at gmail.com>
wrote:

> 7 / 8.0 roundTo 0.01 = 0.88  Aha! Thanks!
>
> But:
>
> 100 * (1.05 raisedTo: 10) roundTo: 0.01 162.89000000000001
>
> "162.88946267774418" "unrounded"
> 100 * (1.05 raisedTo: 15) roundTo: 0.01 207.89000000000001
>
>  "207.8928179411367"  "unrounded"
>  Bug, or me again :-)
>
> MacBook Pro (Retina, 15-inch, Early 2013)  System Version: OS X 10.10.2
> (14C109)
>
> Image
> -----
>
> /Users/chuck/Downloads/Squeak-4.5-All-In-One/Squeak-4.5-All-in-One.app/Contents/Resources/Squeak4.5-13680.image
> Squeak4.5
> latest update: #13680
> Current Change Set: Unnamed1
> Image format 6505 (32 bit)
>
> Virtual Machine
> ---------------
>
> /Users/chuck/Downloads/Squeak-4.5-All-In-One/Squeak-4.5-All-in-One.app/Contents/MacOS/Squeak
> Croquet Closure Cog VM [CoInterpreter VMMaker.oscog-eem.331] 4.5
> Mac OS X built on Aug 22 2013 10:08:05 Compiler: 4.2.1 (Apple Inc. build
> 5666) (dot 3)
> platform sources revision VM: r2776
> http://www.squeakvm.org/svn/squeak/branches/Cog Plugins: r2545
> http://squeakvm.org/svn/squeak/trunk/platforms/Cross/plugins
> CoInterpreter VMMaker.oscog-eem.331 uuid:
> 37d2e4b0-2f37-4e2d-8313-c63637785e59 Aug 22 2013
> StackToRegisterMappingCogit VMMaker.oscog-eem.333 uuid:
> 84da9cb8-7f30-4cb7-b4fb-239a11f63b54 Aug 22 2013
>
> On Wed, Feb 4, 2015 at 2:59 AM, Ben Coman <btc at openinworld.com> wrote:
>
>> In the interest of teaching how to fish, look at the senders of #roundTo:
>> to find its usage.
>>
>> I'll post a full answer tomorrow if you don't beat me to it.
>>
>> cheers -ben
>>
>> On Wed, Feb 4, 2015 at 4:34 PM, Chuck Hipschman <ckhipschman at gmail.com>
>> wrote:
>>
>>> 7 / 8.0 roundTo: 2 I expect 0.88, I get 0
>>>
>>> What am I doing wrong, or this a bug?
>>>
>>> TIA
>>>
>>> Chuck
>>>
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>>
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