I have code that defines a line segment as a point and a vector. So
for line pq, I compute point q from l.p and l.v when necessary. I
also
refer to x and y coords eg. (p.x+q.x, p.y+q.y) So I've wrapped line2d
and point2d from sage using them as __repr__ in my new class and I'm
wondering if this is
Hi Nick!
On Sep 13, 9:36 pm, Nick aroy...@gmail.com wrote:
Sorry, I just needed to be a little patient. I eventually returned to
the Sage command prompt. Typed S and got back an empty set (I know it
wouldn't have been completely empty).
OK, but ctrl-c will only interrupt the computation,
Dear all,
I think that I found an annoying bug in latex. In a notebook cell,
automatic_names(True)
latex(exp((298*S_j - H_j)/(298*R_m)))
gives
e^{\left(\frac{-H_{j} - 298 \, S_{j}}{298 \, R_{m}}\right)}
The sign of 298 S_j is reversed!!
Actually, is there a way to latexify an expression
How can I calculate this summation:
summation(from:0,to:+oo,((2*I)^n/(n^3+1)*(1/4)^n))
in sage?
Can I find radius of convergence of series? How?
Thank you
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Hi!
On Sep 14, 4:08 pm, sps debernasave...@libero.it wrote:
How can I calculate this summation:
summation(from:0,to:+oo,((2*I)^n/(n^3+1)*(1/4)^n))
in sage?
Disclaimer: I am not an expert in symbolics (I am more into algebra).
I thought the following should work:
sage: var('n')
n
On Sep 14, 11:08 am, sps debernasave...@libero.it wrote:
How can I calculate this summation:
summation(from:0,to:+oo,((2*I)^n/(n^3+1)*(1/4)^n))
in sage?
First I tried this:
--
| Sage Version 4.4.4, Release Date:
So you say, I have to digit this:
maxima_console()
?
What are these other expressions? Can you explain better?
snip
(%i1) load(simplify_sum);
(%o1) /Users/.../sage-4.4.4/local/share/maxima/5.20.1/s\
hare/contrib/solve_rec/simplify_sum.mac
(%i2)
On Sep 14, 11:40 am, sps debernasave...@libero.it wrote:
So you say, I have to digit this:
maxima_console()
Not exactly. What I am saying is that Sage uses Maxima, another open
source mathematics program, to do symbolic summation. I used Sage's
instance of this program to see what happened
On Sep 8, 2:57 am, Cary Cherng cche...@gmail.com wrote:
I am not familiar with algebraic geometry or its terminology and new
to sage.
p_1,...p_n and q are elements of Z[x_1,...,x_n]. In my context I have
some evidence that q can be written as something like q = p_1*p_2
+ ... + p_5*p_6. In
On Sep 14, 12:16 am, Robert Bradshaw rober...@math.washington.edu
wrote:
Alastair correctly deduced the issue that it can't tell if the number
is less than or greater than 2, what should it do here?
I do not know what it should do, but what I would have expected
in this case is that
If I type the following into Sage (which is straight from the
implicit_plot documentation), I get a black square:
x,y=var('x,y')
f(x,y) = x^2 + y^2 - 2
implicit_plot(f, (-3, 3), (-3, 3),fill=True).show(aspect_ratio=1)
Of course, if you remove fill=True, then everything works as
expected. The
I am copying my reply to sage-support@googlegroups.com since it is
better to ask questions there than to (busy!) individuals.
For general plane curves, the answer is yes but the general
algorithms are very slow (if the field is large). For example,
sage: F = GF(4,'a')
sage: A2.x,y =
On Sep 14, 3:00 pm, D.C. Ernst ernst.tr...@gmail.com wrote:
If I type the following into Sage (which is straight from the
implicit_plot documentation), I get a black square:
x,y=var('x,y')
f(x,y) = x^2 + y^2 - 2
implicit_plot(f, (-3, 3), (-3, 3),fill=True).show(aspect_ratio=1)
Of course,
On Tue, Sep 14, 2010 at 10:44 AM, Håkan Granath
hakan.gran...@googlemail.com wrote:
On Sep 14, 12:16 am, Robert Bradshaw rober...@math.washington.edu
wrote:
Alastair correctly deduced the issue that it can't tell if the number
is less than or greater than 2, what should it do here?
I do not
On Tue, Sep 14, 2010 at 6:44 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Tue, Sep 14, 2010 at 10:44 AM, Håkan Granath
hakan.gran...@googlemail.com wrote:
On Sep 14, 12:16 am, Robert Bradshaw rober...@math.washington.edu
wrote:
Alastair correctly deduced the issue that it can't
On 9/14/10 8:12 PM, kcrisman wrote:
On Sep 14, 3:00 pm, D.C. Ernsternst.tr...@gmail.com wrote:
If I type the following into Sage (which is straight from the
implicit_plot documentation), I get a black square:
x,y=var('x,y')
f(x,y) = x^2 + y^2 - 2
implicit_plot(f, (-3, 3), (-3,
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