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2014-06-29 03:15:26 +0100 | marked best answer | Navigating sage source code I'm thoroughly confused by the source code. I've downloaded and unpacked all the source code in spkg/standard and spkg/base, but what I get looks totally different from what I see when browsing the code online (http://hg.sagemath.org/sage-main/file...). Can someone please help me make sense of the source code? I just want to be able to navigate through the code that gets executed when some sage commands are invoked. Thank you. |

2014-06-29 03:15:26 +0100 | marked best answer | python/sage scripts First of all, my apologies for being a noob and a windows user. I'm using sage in virtualbox. I'm at this part of the tutorial: sagenb.org/doc/live/tutorial/programming.html#standalone-python-sage-scripts I'm having 2 problems: (1) I can't execute "./factor 2006". It says "no such file or directory", but the file is definitely there, and "sage -python factor 2006" works. (2) factoring polynomials doesn't seem to work for me in sage. If I call factor on a string I get a TypeError: "unable to factor n".
Any assistance is much appreciated! |

2014-01-10 12:09:29 +0100 | marked best answer | Getting plot data For example: |

2014-01-10 12:09:11 +0100 | commented answer | Getting plot data Thank you! |

2014-01-09 11:17:13 +0100 | commented answer | Getting plot data Thanks. What about 2d plots? e.g. C = circle((0,0),5) ? |

2014-01-08 23:01:13 +0100 | asked a question | Getting plot data Is there a way to extract the set of values used in a plot using sage/python code? For example, if I have 3D surface plot, what is the best way to get the set of vertices, or the z-values, for the mesh? (and similarly for 2d plots) I've looked through some of the plotting source code but haven't found a straightforward way to access the underlying plot data. Any tips would be appreciated! |

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2012-12-19 19:12:00 +0100 | marked best answer | Does a subtraction symbolic expression actually exist? We only use For example: You can read more about the internal representation of expressions in the relevant part of the GiNaC tutorial. The patch attached to ticket #13738 wraps some internal GiNaC functions to view the expression tree. |

2012-12-18 22:28:15 +0100 | asked a question | Does a subtraction symbolic expression actually exist? Can someone please give me an example of a symbolic expression in sage of the subtraction variety? (by subtraction variety I mean using the subtraction operator) Precisely: how can I create an object For example: |

2012-11-13 18:53:13 +0100 | marked best answer | Traversing sage's symbolic expression trees in python Did you read TFM? There is a If you want to do it by hand you can use but I'd recommend you use the |

2012-11-13 18:53:09 +0100 | commented answer | Traversing sage's symbolic expression trees in python Thank you. op and operator are what I was looking for. I did read TFM but it's pretty... complete. It takes a while to find the needle in the haystack. |

2012-11-12 18:16:40 +0100 | asked a question | Traversing sage's symbolic expression trees in python I'm writing some python code around sage and I need to build an expression tree of the following basic form: - each node represents an operation
- each child tree represents an expression tree to which the operation applies
Can anyone point me in the right direction as to how to traverse an instance of |

2012-11-10 20:36:01 +0100 | commented answer | Python's C API and SAGE Thanks, this seems to work. Even compiling it outside the sage shell and running it in the sage shell works. Not quite what I was looking for though (I'd prefer if sage didn't need to be the master). |

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2012-11-09 23:47:05 +0100 | asked a question | Python's C API and SAGE I have written some python code which imports and uses the sage library. I would like to invoke some of this code from C++ code using the C API for python. The problem is that the C API uses the system-wide python installation, rather than sage's python, and therefore the "from sage.all import *" statement generates ImportError. Can anyone tell me how to |

2012-10-15 17:19:42 +0100 | marked best answer | python/sage scripts Edit: try replacing the first line with One more attempt at an answer: perhaps the shell in VirtualBox doesn't accept the syntax That's my guess. See Wikipedia's article on 'Shebang (Unix)' I don't know how to add the link here, since the link has a right parenthesis in it, which conflicts with the markup here for links and in particular the part which says
While the original script (with |

2012-10-15 17:19:42 +0100 | commented answer | python/sage scripts I see - thanks. |

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2012-10-15 15:27:39 +0100 | marked best answer | Navigating sage source code If you've downloaded the source code for Sage but haven't built Sage yet (by typing 'make'), then as kcrisman says, the source code for the Sage library is packaged in Then you can browse through the source code as found on line. |

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