On Feb 20, 2008, at 2:01 , nicolas cellier wrote:
One thing I wasn't clear on is whether Bert's suggestion:
aColl removeAllSuchThat: [:anElement| true].
Is okay, and why it's okay while many of the other similar
approaches were not.
Bert's suggestion is simple and works well.
The only
Ok, I reimplemented this method as Bert suggested and in the next
version of Aida/Web it will be:
OrderedCollectionremoveAll
remove all elements quickly
self removeAllSuchThat: [:each | true]. Squeak specific
self become: OrderedCollection new VW specific
Note that this method is
El 2/19/08 11:22 PM, Jeffrey Straszheim [EMAIL PROTECTED]
escribió:
I want to create a container -- a panel -- that will contain other
Morphs, but within which I can drag the morphs around. If the more were
dragged out from the container it should be deleted.
What is the most
On Feb 20, 2008, at 11:31 , cdrick wrote:
I think 0.1 should be considered as a ScaledDecimal so that we could
write 0.1 asFraction and have 1/10...
To achieve that,
... write it as 0.1s1
- Bert -
___
Beginners mailing list
Computers generally do what you tell them, not what you mean. 0.1
does have a different meaning than 1/10 in computing land. If you
mean a fraction, write a fraction. If you mean a float, write a
dotted decimal. Smalltalk even has means to write fractions as
decimals (0.1s1). So simply
Hi I'm looking to hook up my own dlls (and some of the standard windows
ones too in due course) to Squeak. I've been through the named-primitive
tutorial and it appears that it is for earlier versions of Squeak than
the present version. Can anyone point me in the right direction to
calling a C
On Feb 20, 2008, at 14:21 , cdrick wrote:
To achieve that,
... write it as 0.1s1
ok, so 0.1 asFraction (3602879701896397/36028797018963968) is no
problem ;-)
Indeed, because it is correct.
Perhaps #asApproximateFraction is what you are after.
The problem I have is the intention... I
To achieve that,
... write it as 0.1s1
ok, so 0.1 asFraction (3602879701896397/36028797018963968) is no problem ;-)
The problem I have is the intention... I think everybody who
writes/enters 0.1 means 1/10... and not a flotting point value...
Float to me is more a computer number more than
Hi I'm looking to hook up my own dlls (and some of the standard windows
ones too in due course) to Squeak. I've been through the named-primitive
tutorial and it appears that it is for earlier versions of Squeak than
the present version. Can anyone point me in the right direction to
calling a
Thx. I've read that article but I can't find an ExternalTypes class in my
image. Do I need to load a particular package to get NamedPrimitives or FFI to
work?
Thx
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of cdrick
Sent: 20 February 2008
depends on your image... Maybe it's not loaded as in 3.9 and later...
Go and see in Universe Browser (open menu) under the category system
then select the different FFI-categories and install them. Maybe
you'll have to make an update list from network in the Universe
Browser first.
HTH
Cédrick
On Wed, 20 Feb 2008 00:59:57 +0100, nicolas cellier wrote:
...
I see, become: does exchange #identityHash, and that makes our
IdentityDictionary work, god thanks, but there is no such provision for
ordinary #hash and Dictionary...
But there are sufficient provisions in place, since
I have another interrogation. Please take it as a student/newbie
whatever question.
I think 0.1 should be considered as a ScaledDecimal so that we could
write 0.1 asFraction and have 1/10...
What you desire is admirable but no longer practical as it would break a great
many existing
What you desire is admirable but no longer practical as it would break a great
many existing programs.
Yep, that's a BIG problem :-)
[snip]
between different manufactures computers. After a while, computers supported
integers, floating point numbers and IBM mainframes had packed decimal
I don't know what you are working on but if you use fractions for what you are
doing it would be interesting to hear about how you use them and your results.
Because fractions are kept as an integer numerator and an integer denominator,
they probably take up more memory than floats but less
Hello David,
dbuc Thx. I've read that article but I can't find an
dbuc ExternalTypes class in my image. Do I need to load a particular
dbuc package to get NamedPrimitives or FFI to work?
maybe you are not aware of the fact that FFI and namedPrimitives are
two independent ways to talk to external
Waaah, belief and plausibility as sum over numbers; shudder;
political-systems-failure through machine calculations; market-meltdown
through machine calculations; poverty-for-everyone through machine
calculations :( Anyways, have you compared to Pei Wang's NARS (or perhaps
his The limitation
On Wed, 20 Feb 2008 18:27:09 +0100, cdrick wrote:
...
I think all this is premature optimization for me :) as I'm only
building an early prototype (I'm doing a start of Dempster Shafer
Theory [1] implementation (actually Transferable Belief Model)... and
it's won't reach a big size for a while.
Klaus D. Witzel a écrit :
On Wed, 20 Feb 2008 00:59:57 +0100, nicolas cellier wrote:
...
I see, become: does exchange #identityHash, and that makes our
IdentityDictionary work, god thanks, but there is no such provision
for ordinary #hash and Dictionary...
But there are sufficient
Klaus D. Witzel a écrit :
On Wed, 20 Feb 2008 02:01:49 +0100, nicolas cellier wrote:
Some proposed an alternative based on (self removeAll: self), and
started writing optimized versions of #removeAll:.
No, (anOrderedCollection removeAll: anOrderedCollection) was not
optimized. It had a
Im finding that with
[Rectangle forward by 5]
[Rectangle bounce silence]
the rectangle eventually collides with the top of the world and bounces
off in the opposite direction - with no sound ... the bounce is silent.
However, this script
[Rectangle forward by JoyStick's upDown * 8]
Hi, polishookm,
I cannot reproduce the phenomenon you describe in any image I have
close to hand -- not in Squeak 3.9, not in Squeakland3.8-05, and not
in the OLPC etoys image. (Can anyone else?)
What version of Squeak are you using? If it's 3.10, I'll leave it for
other 3.10 users to
On Wed, 20 Feb 2008 22:12:57 +0100, nicolas cellier wrote:
Klaus D. Witzel a écrit :
On Wed, 20 Feb 2008 00:59:57 +0100, nicolas cellier wrote:
...
I see, become: does exchange #identityHash, and that makes our
IdentityDictionary work, god thanks, but there is no such provision
for
On Wed, 20 Feb 2008 23:05:47 +0100, nicolas cellier wrote:
Klaus D. Witzel a écrit :
On Wed, 20 Feb 2008 02:01:49 +0100, nicolas cellier wrote:
Some proposed an alternative based on (self removeAll: self), and
started writing optimized versions of #removeAll:.
No, (anOrderedCollection
Hi, Mark,
What you're hearing is not a sound associated with the bounce but
rather a sound associated with an object hitting the fence.
The fence is a feature that makes a forward command which would
take an object beyond the edge of its container result in the the
object's jiggling back
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