In my Sage code,
R.v1, v2, v3=BooleanPolynomialRing(3)
f=v1*v2+v1*v3+v1
print f.coefficient(v1)
I am getting
Traceback (click to the left of this block for traceback)
...
AttributeError: 'sage.rings.polynomial.pbori.BooleanPolynomial' object
has no attribute 'coefficient'
Answer should be
Why 0.04 ? Th notebook says :
S=(5^( x -1) == (0.04)^(2*x)).subs({0.04:1/25}).log().solve(x) ; S
[x == log(5)/(2*log(25) + log(5))]
bool(S[0].rhs()==1/5)
True
(The last step is easily done by mental computation ; this is only a
check.).
HTH,
--
Emmanuel Charpentier
Le dimanche 16 novembre
If you ask Sage to do something it can't, like solve a quintic polynomial
equation, it will spit the question back at you.
If Sage did that I'd be fine. However, Sage spit back the empty set which
is the WRONG answer and far different yes?
On Sunday, November 16, 2014 12:54:20 PM UTC-6,
I didn't *need* to have 0.04. This is just a command that actually came up
in real work.
I didn't want to alter it in any way lest it may be a genuine bug.
cs
On Monday, November 17, 2014 6:48:04 AM UTC-6, Emmanuel Charpentier wrote:
Why 0.04 ? Th notebook says :
S=(5^( x -1) ==
Santanu wrote:
R.v1, v2, v3=BooleanPolynomialRing(3)
f=v1*v2+v1*v3+v1
print f.coefficient(v1)
I am getting
Traceback (click to the left of this block for traceback)
...
AttributeError: 'sage.rings.polynomial.pbori.BooleanPolynomial' object
has no attribute 'coefficient'
Answer
Hi sage-support,
I'm a complete newbie to sage. Currently I started learning the very
first example in the tutorial on algebra, but got the following error in
'solve'. I'm running OS X 10.9.5, and sage version is 6.4.
sage: x=var('x')
sage: solve(x^2 + 3*x + 2, x)
In file included
I run the following code:
$ sage -maxima
And the messages are:
;;; Loading #P/Applications/sage/local/lib/ecl/cmp.fas
;;; OPTIMIZE levels: Safety=2, Space=0, Speed=3, Debug=0
;;;
;;; End of Pass 1.In file included from
/Applications/sage/local/lib/ecl/ecl/ecl-cmp.h:22:0,
On Monday, November 17, 2014 8:49:14 PM UTC-5, Bozh wrote:
I run the following code:
$ sage -maxima
And the messages are:
Can you see what is in
$ ls /usr/include/sys/
presumably types.h should be there.
Did you download a binary? Can you say precisely which one you downloaded?
In my Mac the directory '/usr/include/sys/' does not exist, and I’ve no idea
about this. Yes, I downloaded a binary from this link:
http://mirrors.hustunique.com/sagemath/osx/intel/index.html
and I chose the *10.9_x86_64-app.dmg. Shall I use *10.9_x86_64.dmg instead?
On Nov 18, 2014, at 10:10
On Monday, November 17, 2014 5:49:14 PM UTC-8, Bozh wrote:
;;; (RUN-PROGRAM gcc (-I. -I/Applications/sage/local/lib/ecl/
-I/Users/buildslave-sage/slave/sage_git/build/local/include
-I/Users/buildslave-sage/slave/sage_git/build/local/include -g -O2
-fPIC -fno-common -Ddarwin -O2 -c
I tried 2 other binaries from different locations, but the problem remains.
I noted from kcrisman's response that I have no '/usr/include/sys/'
directory, so maybe this problem comes with Xcode?
On Tuesday, November 18, 2014 11:07:56 AM UTC+8, Nils Bruin wrote:
On Monday, November 17, 2014
Problem solved. I did not install 'Command Line Tools for Xcode' previously
on my Mac because I did not read instructions on installing Sage from
source code. After installing Command Line Tools, it works now. Though the
installation of Sage is still from a binary one.
@Nils and @kcrisman,
Le lundi 17 novembre 2014 17:32:27 UTC+1, Chris Seberino a écrit :
If you ask Sage to do something it can't, like solve a quintic polynomial
equation, it will spit the question back at you.
If Sage did that I'd be fine. However, Sage spit back the empty set which
is the WRONG answer and
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