It worked! thank you.

On Tuesday, May 9, 2017 at 8:52:37 AM UTC-5, William Stein wrote:
>
> Restart your project and try again.  If that doesn't work create a support 
> request with a link to your file. 
>
> On Tuesday, May 9, 2017, <[email protected] <javascript:>> wrote:
>
>> Thanks for the information. I tried the Jupyter notebook and it works 
>> fine (when I choose kernel SageMath (latest)). I noticed that the interface 
>> seems similar to Mathematica and that's good for me because that's the only 
>> system I have used till recently. But I could not get the conversion to a 
>> .sagews file work. If I go to the File menu, I see "Sage Worksheet 
>> (.sagews)..." but it is a subitem of the "Download" item, and that is 
>> greyed out. The "Sage Worksheet (.sagews)..." item can still be selected 
>> but then I get an error that says
>> Error
>> Running nbconvert failed with an error 30 seconds ago. Read the error log 
>> below, update your Jupyter notebook, then try again.
>> kernel info not known, so can't save
>>
>>
>>
>>
>>
>>
>>
>> On Sunday, May 7, 2017 at 3:24:39 PM UTC-5, William Stein wrote:
>>>
>>> On Sun, May 7, 2017 at 1:14 PM,  <[email protected]> wrote: 
>>> > Thank you. When you say that Jupyter will be the default notebook for 
>>> sage 
>>> > 8.0, does that mean that they will replace the .sagews notebooks? 
>>>
>>> 1. Sage -- the distribution that you download -- will make jupyter the 
>>> default notebook.  It will still provide sagenb with the .sws file 
>>> format. 
>>>
>>> 2. .sagews is ONLY in SMC. 
>>>
>>> > I am 
>>> > planning to use SMC for teaching this summer and/or fall. Would you 
>>> > recommend that I only use Jupyter notebooks? Or is there some reason 
>>> to use 
>>> > .sagews in some cases? 
>>>
>>> Using either Jupyter or .sagews is fine, **depending on what you're 
>>> teaching**.  If you're doing a lot with @interact or 3d graphics, 
>>> sagews has much better support. 
>>>
>>> Right now we also File --> Sage Worksheet, which lets you easily take 
>>> a Jupyter notebook and make a .sagews version of it.  We don't have 
>>> the other direction quite yet, but plan to. 
>>>
>>> We also plan to make a new Jupyter kernel that supports all the 
>>> features of Sage worksheets, but that's a ways off still. 
>>>
>>>  -- William 
>>>
>>> > 
>>> > 
>>> > 
>>> > 
>>> > On Sunday, May 7, 2017 at 8:49:08 AM UTC-5, [email protected] wrote: 
>>> >> 
>>> >> If I define a set in my local copy of Sage using S={1,2,3} or 
>>> >> S=set([1,2,3]), then when I type S I see {1,2,3}. But if I do it in 
>>> SMC when 
>>> >> I type S I see set([1,2,3]). I would prefer to be able to display the 
>>> usual 
>>> >> {1,2,3} when I use SMC. Thanks for any help. 
>>> > 
>>> > -- 
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>>> > 
>>> https://groups.google.com/d/msgid/sage-cloud/f3baa79d-7089-419b-8e41-a132c9ae93ae%40googlegroups.com.
>>>  
>>>
>>> > 
>>> > For more options, visit https://groups.google.com/d/optout. 
>>>
>>>
>>>
>>> -- 
>>>
>>> Best Regards, 
>>> William Stein 
>>>
>>> CEO, SageMath, Inc. 
>>>
>> -- 
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>>  
>> <https://groups.google.com/d/msgid/sage-cloud/1f6ecb92-7ea7-4aa9-b985-434112f1b200%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
> -- 
>
> Best Regards,
> William Stein
>
> CEO, SageMath, Inc.
>

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