On Friday, November 30, 2018 at 1:59:40 PM UTC-8, saad khalid wrote:
>
> However, when I try to compute this h(.1), the function doesn't plug in .1
> in for s in the function, and it returns:
>
> [ s + 1 0]
> [ 0 -s + 1]
>
>
> What exactly is happening?
>
> The problem is that a matrix ov
I'm quite confused, why do you think this is not implemented? It seems like
the kind of thing that is so simple, it should "just work." Is there some
strange complication that could arise by defining it over SR that I'm not
thinking of? I feel like it should be possible to define the function an
Thanks!
On Friday, November 30, 2018 at 5:02:27 PM UTC-8, slelievre wrote:
>
>
> Fri 2018-11-30 23:43:00 UTC, David Guichard:
>>
>> In this page,
>>
>> http://skink.whitman.edu/~guichard/sage/two_plots_clean.html
>>
>> I have two sagecells, each to do a 3d plot. If I evaluate the first one,
>> it
Sat 2018-12-01 01:02 UTC, slelievre:
>
> Fri 2018-11-30 23:43 UTC, David Guichard:
>>
>> In this page,
>>
>> http://skink.whitman.edu/~guichard/sage/two_plots_clean.html
>>
>> I have two sagecells, each to do a 3d plot. If I evaluate the first one, it
>> works as expected. If I then evaluate the s
Fri 2018-11-30 23:43:00 UTC, David Guichard:
>
> In this page,
>
> http://skink.whitman.edu/~guichard/sage/two_plots_clean.html
>
> I have two sagecells, each to do a 3d plot. If I evaluate the first one,
> it works as expected. If I then evaluate the second, it graphs correctly,
> but it also r
In this page,
http://skink.whitman.edu/~guichard/sage/two_plots_clean.html
I have two sagecells, each to do a 3d plot. If I evaluate the first one, it
works as expected. If I then evaluate the second, it graphs correctly, but
it also replaces the first plot with a copy of the second. Neither of
It seems that doing this kind of thing over SR is not implemented.
However, you can do something like this:
R.=QQ[]
Mz = matrix(R,[[0,1],[1,0]])
Mx = matrix(R,[[1,0],[0,-1]])
M1 = matrix(R,[[1,0],[0,1]])
h = M1 + s*Mx
sage: h(s=1/2)
[3/2 0]
[ 0 1/2]
Here h is a matrix with entries in R, and su
Hi all,
I'm not sure what is happening, but I defined some matrices:
Mz = matrix([[0,1],[1,0]])
Mx = matrix([[1,0],[0,-1]])
M1 = matrix([[1,0],[0,1]])
And then I tried defining a function where I multiply these matrices by
some variable and add them together:
h(s) = M1 + s*Mx
h(.1)
However, wh
Hey everyone:
Perhaps I am missing something very obvious, but is there an implementation
of the pauli spin matrices in Sage? They are simple enough to define, but
ubiquitous enough that I would have assumed they were predefined.
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