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20190104 05:20:48 0600  commented answer  Quaternion * integer you must do something like: 
20190103 10:31:45 0600  commented answer  Documentation erratum

20190103 10:26:41 0600  answered a question  Quaternion * integer by defining a method 
20190103 05:20:42 0600  commented answer  Sage Floyd algorithm in Cython Are you welling to add 
20181203 03:40:58 0600  commented answer  Error in finding the closest vector in a sublattice of Z^n "one of the main things I want to do is simply orthogonally project a vector onto a subspace spanned by the columns of a matrix, which is functionality Sage also seems not to have builtin anywhere I can find it." Orthogonal projection can be made with multiplication of matrices, and I think that you can multiply matrices in Sage. In the wikipedia page Projection (linear algebra), you will find a formula of the form: which gives you a matrix which does the orthogonal projection with respect to the column of the matrix A. 
20181201 01:55:47 0600  marked best answer  Can make doc use less memory? Running make doc works fine during the night on my computer because I am not using it. But running make doc is really annoying during the day when let's say I want to use firefox at the same time: the computer gets swapping and becomes unusable. 
20181025 09:17:20 0600  commented answer  Is there anything in Sage which solves #SAT ? For an small typical example I have, 
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20181022 10:40:06 0600  commented answer  Is there anything in Sage which solves #SAT ? Thank you for your idea of using 
20181019 04:29:29 0600  asked a question  Is there anything in Sage which solves #SAT ? For example using sharpsat or relsat or Dsharp? 
20181018 08:04:43 0600  commented question  Change binary Operation in Monoid/Semigroup Rings Maybe you need to create a new category for the algebra you need. Maybe you will find information on how to do this in the four documentation pages in the section Parents/Elements, Categories and algebraic structures of the thematic tutorials. 
20180909 13:56:39 0600  answered a question  Is there a sage command to compute complex numbers? I get: If you want the real and imaginary parts, you may do: 
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20180903 02:15:55 0600  answered a question  Setting relations between variables You may create a dictionary of variables: which then allows you to create a loop to set your relations. Alternatively, you may create only the variable 
20180829 09:10:55 0600  commented answer  Wrong result from integral(log(1+1/(x**2+1)), x, oo, oo) So where should we fix this? 
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20180828 04:03:40 0600  asked a question  Why .45 // .28 does not work? Taking modulo works with Python float and Sage float: The quotient works with Python float: But why should it not work with Sage float as well? 
20180827 15:48:31 0600  answered a question  Wrong result from integral(log(1+1/(x**2+1)), x, oo, oo) By default, Sage uses Maxima which indeed gets it wrong. Nonetheless, Sympy and Giac both get it right: 
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20180822 08:20:07 0600  answered a question  su2 matrix exponentiation Using sympy, it seems to work: Then using copypaste, I am able to construct the matrix Note: I was expecting that 
20180817 08:59:28 0600  answered a question  How can I compute the orbits of an automorphism group? Let's say that you are considering the automorphism group of a graph. Then, you do: You may also get both the automorphism group and the orbits from the graph: 
20180807 02:13:42 0600  answered a question  No module named coin_backend You need to run make after the installation of cbc or at least rebuild sagelib. The documentation on MILP solvers says to install cbc like this: 
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20180804 08:30:18 0600  answered a question  Words avoiding patterns You may use RecursivelyEnumeratedSet in Sage to do these kind of thing: 
20180722 06:47:36 0600  commented answer  Finding the frequency of each number in a string Instead of using or even better: 
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20180711 02:49:07 0600  answered a question  Why is the Subwords class separated from FiniteWord? The module Notice that the code in If you know the existence of a better algorithm, you are welcome to add it to the 
20180709 16:45:27 0600  commented question  Using sagemath on windows 10 : impossible to attach file Did you try absolute paths and write 
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20180612 11:14:17 0600  answered a question  Running several commands from command line One way is to concatenate the commands with a 
20180607 13:57:53 0600  commented question  pdflatex not available from Jupyter in SageMath8.1.app See also this question : https://ask.sagemath.org/question/104... 
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