On Mar 30, 9:48 am, Minh Nguyen nguyenmi...@gmail.com wrote:
Hi Jared,
On Wed, Mar 31, 2010 at 12:31 AM, Jared Schlieper
dr.schlie...@gmail.com wrote:
SNIP
Am I missing something?
Mathematica gives 3954.63 using the NIntegrate command.
Is the following what you want?
[mv...@sage
On Mar 30, 10:31 am, Jason Grout jason-s...@creativetrax.com wrote:
On 03/30/2010 08:31 AM, Jared Schlieper wrote:
Greetings,
I am in the process of converting calculus 3 assignments from
Mathematica to Sage and came upon an error I can't figure out.
Trying to find the mass of a
On 03/30/2010 08:31 AM, Jared Schlieper wrote:
Greetings,
I am in the process of converting calculus 3 assignments from
Mathematica to Sage and came upon an error I can't figure out.
Trying to find the mass of a region bounded by two functions(g1,g2)
with a given density. Below is the code,
Hi William,
On Thu, Dec 18, 2008 at 08:40:37AM +0200, Jan Groenewald wrote:
In this worksheet:
http://users.aims.ac.za/~jan/type_of_variable.sws
The type of a symbolic variable multiplied by a
rational matrix does not return a rational matrix,
but a
On Fri, Dec 19, 2008 at 4:57 AM, Jan Groenewald j...@aims.ac.za wrote:
...
sage: A=matrix([[1,2],[2,1]]);A
[1 2]
[2 1]
sage: eig=A.eigenvectors_right();eig
[(3, [
(1, 1)
], 1), (-1, [
(1, -1)
], 1)]
sage: v=eig[0][1][0];v
(1, 1)
sage: var('t')
t
I think its fair to call this a bug. I am still shaky on coercions in
Sage so I am hesitant to file a trac report without hearing again from
someone else.
-M. Hampton
On Dec 19, 5:42 am, David Joyner wdjoy...@gmail.com wrote:
On Fri, Dec 19, 2008 at 4:57 AM, Jan Groenewald j...@aims.ac.za
Hi
On Fri, Dec 19, 2008 at 05:31:30AM -0800, Marshall Hampton wrote:
I think its fair to call this a bug. I am still shaky on coercions in
Sage so I am hesitant to file a trac report without hearing again from
someone else.
Me too.
The core is this:
sage: var('t')
t
sage:
On Dec 19, 1:35 pm, Jan Groenewald j...@aims.ac.za wrote:
The core is this:
sage: var('t')
t
sage: type(v)
type 'sage.modules.vector_rational_dense.Vector_rational_dense'
sage: type(v*t)
type
Something odd is happening here. I just noticed that if we define v
as:
v = vector(QQ,[1,1])
then there are no problems, even though the type(v) is the same as in
your code. I don't understand how the same type of object, with the
same values, would have different coercion behavior.
Marshall Hampton wrote:
Something odd is happening here. I just noticed that if we define v
as:
v = vector(QQ,[1,1])
then there are no problems, even though the type(v) is the same as in
your code. I don't understand how the same type of object, with the
same values, would have
On Dec 19, 2008, at 10:40 AM, Jason Grout wrote:
Marshall Hampton wrote:
Something odd is happening here. I just noticed that if we define v
as:
v = vector(QQ,[1,1])
then there are no problems, even though the type(v) is the same as in
your code. I don't understand how the same type of
On Fri, Dec 19, 2008 at 12:22 PM, Jason Grout
jason-s...@creativetrax.com wrote:
Robert Bradshaw wrote:
The problem comes up when the parent of v has a user-defined basis,
instead of the standard basis:
sage: v.parent()
Vector space of degree 2 and dimension 1 over Rational Field
User
William Stein wrote:
It looks like eigenvectors are returned as the basis vectors of the
eigenspace. Should they be returned as just plain old vectors instead?
Yes, definitely. Then we don't have create a whole bunch of different
vector spaces for no reason too.
Okay, this is #4834.
Hi
On Thu, Dec 18, 2008 at 08:40:37AM +0200, Jan Groenewald wrote:
In this worksheet:
http://users.aims.ac.za/~jan/type_of_variable.sws
The type of a symbolic variable multiplied by a
rational matrix does not return a rational matrix,
but a
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