2024-02-13 22:02:29 +0100 | asked a question | Auslander-Reiten Quiver - knitting Ausland-Reiten Quiver - knitting Given a quiver representation A3= DiGraph({1:{2:['a']}, 2:{3:['b']}}) or A4= DiGr |
2023-09-11 01:02:11 +0100 | edited question | tetrahedron with each face differently colored? tetrahedron with each face differently colored? I am running the code G = tetrahedron(color='blue') G.show(aspect_rat |
2023-09-11 00:32:52 +0100 | asked a question | tetrahedron with each face differently colored? tetrahedron with each face differently colored? I am running the code G = tetrahedron(color='blue') G.show(aspect_rat |
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2023-01-18 14:44:51 +0100 | asked a question | quasi-affine subvarieties quasi-affine subvarieties I would like to set up a quasi-affine variety in $\mathbb{A}^2$ (over a field of characteristi |
2022-11-19 15:02:27 +0100 | asked a question | implicit_plot doubled straight line implicit_plot doubled straight line How come this plotted straight line is doubled? x, y = var('x,y') show(implicit_plo |
2022-10-22 11:20:08 +0100 | edited question | plot the the intersection of two surfaces in 3d, use of a special colour for the intersection plot the the intersection of two surfaces in 3d, use of a special colour for the intersection Is it possible to colour t |
2022-10-22 11:19:22 +0100 | edited question | plot the the intersection of two surfaces in 3d, use of a special colour for the intersection plot the the intersection of two surfaces in 3d, use of a special colour for the intersection Is it possible to colour t |
2022-10-22 11:18:45 +0100 | edited question | plot the the intersection of two surfaces in 3d, use of a special colour for the intersection plot the the intersection of two surfaces in 3d, use of a special colour for the intersection Is it possible to colour t |
2022-10-22 11:18:22 +0100 | asked a question | plot the the intersection of two surfaces in 3d, use of a special colour for the intersection plot the the intersection of two surfaces in 3d, use of a special colour for the intersection Is it possible to colour t |
2022-10-14 20:42:07 +0100 | edited question | Draw the real part of a hypersurface in a real 3d-plot in the affine 3-space over C Draw the real part of a hyperspace in a real 3d-plot in the affine 3-space over C Is it possible to 3d-plot the (rationa |
2022-10-14 20:42:04 +0100 | edited question | Draw the real part of a hypersurface in a real 3d-plot in the affine 3-space over C Draw the real part of a hyperspace in a real 3d-plot in the affine 3-space over C Is it possible to 3d-plot the (rationa |
2022-10-14 20:41:42 +0100 | edited question | Draw the real part of a hypersurface in a real 3d-plot in the affine 3-space over C Draw the real part of a hyperspace in a real 3d-plot in the affine 3-space over C Is it possible to 3d-plot the (rationa |
2022-10-14 20:40:56 +0100 | asked a question | Draw the real part of a hypersurface in a real 3d-plot in the affine 3-space over C Draw the real part of a hyperspace in a real 3d-plot in the affine 3-space over C Is it possible to 3d-plot the (rationa |
2022-05-08 21:55:15 +0100 | commented question | type error when calculating a limit yes, I imported sympy. you found the bug. Now it works, after removing the import of sympy. How do I avoid the conflicti |
2022-05-08 21:54:47 +0100 | commented question | type error when calculating a limit yes, I imported sympy. you found the bug. Now it works, after removing the import of sympy. How do I avoid the conflicti |
2022-05-08 21:53:55 +0100 | commented question | type error when calculating a limit yes, I imported sympy. you found the bug. Now it works. |
2022-05-08 18:31:13 +0100 | asked a question | type error when calculating a limit type error when calculating a limit I am trying to calculate a limit: print(limit(1/x,x=0)) Why do I get the followin |
2021-01-15 10:35:52 +0100 | commented question | Solve matrix equation in sympy Is there possibly a completely different approach outside of sympy to calculate v=0? |
2021-01-13 22:11:37 +0100 | commented question | Solve matrix equation in sympy I am not sure how to assure that Q has full rank. |
2021-01-13 21:38:17 +0100 | asked a question | Solve matrix equation in sympy How can I solve Q*v=0 for v in matrix terms (Q is a matrix, v is a vector). v should be a zero vector. The matrix Q is supposed to be invertible and full rank. Please help, thanks. |
2021-01-02 17:25:16 +0100 | answered a question | restricting a NumberField to the reals for the calculation of a Galois group The question might be addressed by considering a specific subfield: In this case, the subfield which is real is of degree 2, seen as a vector space. The number field can be restricted to the reals by considering the appropriate subfield which is a proper subset of the reals. The output of the above code is |
2021-01-02 14:18:14 +0100 | asked a question | restricting a NumberField to the reals for the calculation of a Galois group I am trying to calculate a Galois Group. I have the following code The output is I would like to restrict the number field L to the reals. My number field should be non-complex and contain the real root of the minimum polynomial only. How do I acchieve that in my code? Thanks |
2021-01-02 14:16:47 +0100 | asked a question | Number field from minimal polynomial restricted to reals, adjoining only a real root to Q I am trying to calculate a Galois Group. I have the following code The output is I would like to restrict the number field L to the reals. My number field should be non-complex and include only the real root of the minimum polynomial? How do I acchieve that in my code? Thanks |
2019-11-05 13:33:55 +0100 | commented answer | linear algebra derivative expressions You are right, but I am trying to create a procedure for much more complicated algebraic expressions. |
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2019-11-03 13:46:47 +0100 | asked a question | linear algebra derivative expressions How do I differentiate $\mathbf{y}=\mathbf{A}\mathbf{x}$ symbolically in sagemath with respect to the vector $\mathbf{x}$? The result is obviously $\mathbf{A}$. Similarly, I would like to be able to calculate the derivative of the quadratic form $\alpha=\mathbf{x}'\mathbf{A}\mathbf{x}$. I would need these calculations in a more complex setting. I started off with sympy as follows Or is there a different library from sympy available for such a problem? |
2019-10-14 15:32:41 +0100 | asked a question | Schwarz-Christoffel transformations I would like to visualize the Schwarz-Christoffel transformations. Do you have an idea how to implement those? For example a polygon (as a domain) in the complex plane and subsequently also a map (decomposed into several steps) into the upper half-plane of the complex plane should be drawn. I am not quite sure how to do this. The formulas for these transformations are well-known. |