Re: about the use of button
- To: mathgroup at smc.vnet.net
- Subject: [mg115318] Re: about the use of button
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Fri, 7 Jan 2011 04:11:27 -0500 (EST)
I use Opera, not Mail, but I suppose it's possible that Mail is used in
the background somehow.
Bobby
On Thu, 06 Jan 2011 02:55:20 -0600, Andrzej Kozlowski <akoz at mimuw.edu.pl>
wrote:
> My hypothesis is that this is something caused by a change in Apple's
> Mail.app that must have occurred during one of the Snow Leopard updates.
> It does not seem to show when sending e-mails to anyone directly but it
> does cause problems when mail is posted to the MathGroup. It could,
> perhaps, be something to do with the use Unicode in posted messages,
> which the MathGroup server cannot deal with. My own messages started to
> suffer from repeated = signs and other problems around March 2010 but
> they are fine when I send them directly to myself or to other users.
>
> All the above is just a tenuous hypothesis. Can anyone disprove it? (In
> other words, is there any one using the latest Mail.app and not seeing
> any of these problems?
>
> Andrzej Kozlowski
>
>
> On 6 Jan 2011, at 08:02, DrMajorBob wrote:
>
>> It would be nice if the "=" signs STOPPED being doubled. This is a
>> recent
>> addition to our action-packed lives, I take it?
>>
>> Bobby
>>
>> On Wed, 05 Jan 2011 03:35:22 -0600, W. Craig Carter <ccarter at mit.edu>
>> wrote:
>>
>>> Hello Bobby,
>>> This appears to be one of those cases where the "equals sign" got
>>> turned
>>> into two "equals signs" by the email client, the first two lines are
>>> single "="
>>> Craig
>>>
>>> On 4 Jan, 2011, at 4:29 PM, DrMajorBob wrote:
>>>
>>>> Clicking the button gives an error message:
>>>>
>>>> carWeight == tareWeight;
>>>> personNumber == 0;
>>>>
>>>> Row[{Button["A person enters", {carWeight += 60, personNumber++}],
>>>> Dynamic[{carWeight, personNumber}]}]
>>>>
>>>> AddTo::rvalue: carWeight is not a variable with a value, so its value
>>>> cannot be changed. >>
>>>>
>>>> Increment::rvalue: personNumber is not a variable with a value, so its
>>>> value cannot be changed. >>
>>>>
>>>> Bobby
>>>>
>>>> On Tue, 04 Jan 2011 03:26:40 -0600, W. Craig Carter <ccarter at mit.edu>
>>>> wrote:
>>>>
>>>>> Hello Yang,
>>>>> Try this:
>>>>>
>>>>> ----
>>>>>
>>>>> carWeight == tareWeight;
>>>>> personNumber == 0;
>>>>>
>>>>> Row[{Button["A person enters", {carWeight +== 60, personNumber++}],
>>>>> Dynamic[{carWeight, personNumber}]}]
>>>>>
>>>>> -----
>>>>>
>>>>> You must avoid underscores "_" in variable names. It is a good habit
>>>>> to use an lower case letter to begin each variable name. Notice that
>>>>> Dynamic sits outside the button--that is the only place you need to
>>>>> see the current (i. e., dynamic) values.
>>>>>
>>>>> Craig
>>>>>
>>>>>
>>>>> On 28 Dec, 2010, at 6:51 AM, yang wrote:
>>>>>
>>>>>> Button["A person enters",
>>>>>> {Dynamic[car_weight+==60],Dynamic[person_number++}]]
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> DrMajorBob at yahoo.com
>>>
>>
>>
>> --
>> DrMajorBob at yahoo.com
>>
>
--
DrMajorBob at yahoo.com