me to get started.
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Speaking of piecewise functions, does anyone happen to know of a
piecewise polynomial object for Python? I tried writing one (based on
numpy.poly1d) but its integration method seems to have a bug. It
surprises me that I haven't found one on the fertile Web.
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m the reader, unless you click on the
topic about OpenBlas
and see this:...
Please make sure to post such things separately, not inside an
irrelevant thread...
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):
if mytaylors[j][n] == mytaylors[k][n]:
continue
matchcounter[n] += 1
break
else:
matchcounter[20] += 1
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On Monday, September 12, 2016 at 5:59:42 AM UTC, Anton Sherwood wrote:
Oh heck. I used my local Sage "server" yesterday, and (thinking
nothing of it) signed out before shutting it down; and now it wants
me to sign in. I don't remember ever signing in before, and have no
idea what it
Oh heck. I used my local Sage "server" yesterday, and (thinking nothing
of it) signed out before shutting it down; and now it wants me to sign
in. I don't remember ever signing in before, and have no idea what it
thinks my username is!
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I haven't guessed the right keywords. How do I solve a set of linear
equations in which the coefficients are symbolic expressions like
a^2-sqrt(b)?
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wolfram alpha output looks like an unreadable URL
I guess your mail-reader, like mine, thinks "^" is not valid in a URL;
but pasting works.
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"sage
d ignore r.
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To post
partial derivatives with respect to theta, which of course assumes
constant r.
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On 2015-8-13 04:22, Luis Molina wrote:
def slopeline(x=(-5,5)):
p=plot(x^n, (n,0,6), ymin=-5^4, ymax= 5^4)
show(p)
What is (-5,5)^n supposed to be?
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if m == m1:
print equal
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this week, do you mean you've been seeing this message
for days?
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coordinate and change its other coordinate.
'''
I think this is closer to what you want:
c = []
for (x,y) in b:
x.append( [4,5,6] )
c.append( (x,y+1) )
b = c
Or:
b = [ (x+[[4,5,6]],y+1) for (x,y) in b ]
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Phoenix: no, x.append() *operates on* x but does not *return* the new x
as a value (as you might expect in C); the value of x.append() is None.
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Is it only because I'm old that I see something inelegant about a post
that re-quotes (without commenting on any but the newest) eight
generations of quoted matter, including ninety blank lines and four
copies of You received this message because?
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, but one by one as needed (see yield), never
saving them; the speed advantage is in the absence of memory management.
You can do some listlike things with the output of izip(), but not all;
you can't concatenate it or sort it, for example.
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On 2015-5-12 18:42, Phoenix wrote:
I mean after doing either a izip or a zip to create the list k
can I run a loop through k like this ?
for (a,b) in k
Yes, that's what izip is for.
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On 2015-5-12 17:30, Phoenix wrote:
So what is the way to display the result of the izip ?
I changed
print izip(A,X)
to
for j in izip(A,X):
print j
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,repeat = len (A)):
k = zip(A,X)
show(k)
[THE ABOVE zip VERSION WORKS]
Can someone help?
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! It was used in Fortran about twenty years before that.
(For double precision numbers the E became D, iirc.)
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: quel espèce d'extension, à
partir de quel corps? De quelle version de Sage servez-vous?
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only two extensions.
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On 2013-7-17 02:07, Laurent Decreusefond wrote:
For any tuple of integer (a_1,a_2, ..., a_k), [...]
I want to form the function
z - sum_{i=1}^k |f(a_i, z)|^2
Won't this work?
def ff(atuple,z):
return sum([ abs(f(n,z))**2 for n in atuple ])
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), assuming that it provides all the elements (edges etc.) and not
only the bounding hyperplanes (which you already have!).
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and edges of what? Seems to me you need either a graph or a
convex hull for the question to have any meaning!
How does the problem arise?
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(a simplex) is convex,
any piece sliced from it (by a planar cut) will also be convex.
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) -- or, as long as I'm wishing,
a list of the 14400 isometry matrices of the [5,3,3] group.
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Okay, sage.groups.matrix_gps.matrix_group.MatrixGroup() appears to be
what I need. Thanks for the keyword!
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...
...
raise IWantOut
...
except IWantOut:
respond to that condition
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On 2012-3-18 22:57, Simon King wrote:
Why has the original post been marked as spam?
Possibly the phrase I just started using and am loving it! is a
red flag. (I didn't see it marked as spam.)
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On 2012-2-10 05:27, rickhg12hs wrote:
Return the maximal distance from the center to a vertex.
Shouldn't this be translation invariant?
Could 'center' here mean 'origin'? It's not obviously unreasonable to
assume that a polyhedron is defined so that they coincide.
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, but I don't like Python's function syntax.
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For more options, visit
return None # ought to be a numeric value
x=0
for y1 in range(1,3):
for y2 in range(1,y1+1):
x += chap(y1,y2)
print x
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] == l2[x]:
l3.append((x,l1[x]))
print l3
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+0.08838*(0.248244^y)
[...]
Since this is not a polynomial in p and y, what does it mean to obtain
the coefficients of p^j y^k *if not* those of something very similar to
a Taylor series?
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On 2011-11-28 03:02, Dima Pasechnik wrote:
Indeed. That tablet runs Pentium M, which is kind of old nowadays.
Has the instruction set changed in recent years? I assumed it had
stabilized awhile back.
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parametric_plot((f(t-0.5j).real, f(t-0.5j).imag), (t,tmin,tmax))
parametric_plot(ReIm(f(t-0.5j)), (t,tmin,tmax))
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Whenever I shut down my computer, I find that
python ~/sage/local/bin/sage-cleaner
is still running. Does it ever end?
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curious about the default, tho.
In MacOS might it be somewhere within
/Applications/Sage-4.7.1-OSX-64bit-10.6.app/ ?
or ~/Library/Application Support/ ?
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is the base directory?
...
Also: ARGH. Google Groups won't let me register with my preferred
address (bro...@pobox.com).
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