Hi folks,
I am having trouble trying to save a matrix P as a CSV file in Sage:
Def function(A,D):
(sage syntax for creating a matrix P)
return P
and then using a function which opens up the CSV file and utilizes the
entires in the matrix P, from the CSV file.
Is there a method for this?
When I run:
sage: q = QuadraticForm(ZZ,2,[3,2,5])
sage: q.polynomial()
6*x0^2 + 4*x0*x1 + 10*x1^2
I would expect to get half of this result, which is the quadratic form
as a polynomial. The doc tests say this is what the behavior should
be, but I don't understand why. Is this actually the
On Feb 24, 2012, at 08:04 , Jacob Hicks wrote:
When I run:
sage: q = QuadraticForm(ZZ,2,[3,2,5])
sage: q.polynomial()
6*x0^2 + 4*x0*x1 + 10*x1^2
I would expect to get half of this result, which is the quadratic form
as a polynomial. The doc tests say this is what the behavior should
Justin,
I don't think that is the issue here: you are referring to the debate
between using a,2*b,c as coefficeints rather than a,b,c. But here
*all* the coefficients have been doubled.
Note that we also have
sage: BinaryQF([1,2,3])
x^2 + 2*x*y + 3*y^2
john
On 24 February 2012 16:04, Jacob
On Friday, February 24, 2012 11:13:53 AM UTC+1, Chappman wrote:
and then using a function which opens up the CSV file and utilizes the
entires in the matrix P, from the CSV file.
Is there a method for this?
uhm, i'm not sure if you ask about reading or writing. also, your d in
def is
On Feb 24, 2012, at 09:49 , John Cremona wrote:
I don't think that is the issue here: you are referring to the debate
between using a,2*b,c as coefficeints rather than a,b,c. But here
*all* the coefficients have been doubled.
I haven't looked at this code in detail yet, but I'm pretty sure
We do get questions about how to read matrix from csv quite regularly. Of
course its just a few lines of code, but I think it would be nice to have a
matrix_from_file('fname.csv') function that imports csv and perhaps others
(gnumeric/ooffice/excel). Any volunteers? ;-)
On Friday, February
Jason Grout idea is good for me, but I need empiler several plots, i
after use show(plot1+plot2+...). How do this?.
2012/2/24 Dan Drake dr...@kaist.edu
On Fri, 24 Feb 2012 at 01:39AM -0200, Juan Grados wrote:
I need smooth line, (interpolation the points), line(vec) plot line
without
smoth
On 2/24/12 2:36 PM, Juan Grados wrote:
Jason Grout idea is good for me, but I need empiler several plots, i
after use show(plot1+plot2+...). How do this?.
Exactly like you said. Make each plot:
plot1=plot(spline(pts), (0,5))
...
and then do
show(plot1+plot2+...)
Jason
--
To post to this
Yes in console terminal, when i make this
p1 = plot(spline(pattersonCpb),
(__builtin__.max(pattersonCpb)[0],__builtin__.min(pattersonCpb)[0]))+points(pattersonCpb)
show(p1)
the plot work fine, but when i make this load a extern file *.sage only i
get the points.
2012/2/24 Jason Grout
I fix this, thanks by your time
2012/2/24 Juan Grados juan...@gmail.com
Yes in console terminal, when i make this
p1 = plot(spline(pattersonCpb),
(__builtin__.max(pattersonCpb)[0],__builtin__.min(pattersonCpb)[0]))+points(pattersonCpb)
show(p1)
the plot work fine, but when i make this load
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