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2012-06-25 10:29:45 +0200 | commented answer | autodeclare variables Awesome, thanks!! |

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2012-06-25 10:29:38 +0200 | marked best answer | autodeclare variables You can use If you need the variables in the global namespace, you can use |

2012-06-25 09:32:23 +0200 | answered a question | How to install sage5 in OpenSuSE 11.4 Awesome, thank you! |

2012-05-24 10:02:24 +0200 | asked a question | How to install sage5 in OpenSuSE 11.4 Are there any packages? |

2011-10-10 12:54:21 +0200 | commented answer | autodeclare variables That's nice! Thank you! |

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2011-10-10 08:02:21 +0200 | commented answer | collect multiple variables and simplify their coefficients Okay, thank you! It seems I have to do it manually then. |

2011-10-10 07:15:04 +0200 | commented answer | autodeclare variables Unfortunately this doesn't work in the command line interface or in a standalone python program. Is there a similar command? |

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2011-10-09 16:50:44 +0200 | asked a question | collect multiple variables and simplify their coefficients Hi there! In Mathematica you can do the following: Collect[expr, {var1, var2, var3}, Simplify] This transforms expr = var1 to var1 I was wondering if there is an easy way to do this in Sage. So my questions are: 1) How can you collect multiple variables? 2) How can you manipulate their coefficients? (each coefficient is independent) 3*) How can you print the result in a pretty way? (e.g. collecting the expression by coefficients and printing each term in a new line) Thanks for your help! |

2011-10-09 15:30:30 +0200 | commented answer | autodeclare variables Ah you're right. That's strange, a simple expression worked, but sin(x) not. I'll check it out. Thank you very much for your help! |

2011-10-09 14:39:55 +0200 | commented answer | autodeclare variables I'm afraid Maxima cannot handle my expression. I tried your workaround, but it fails on my expression (it has for example sin(x). Anyhow want to make it as general as possible). |

2011-10-09 13:42:33 +0200 | answered a question | autodeclare variables Thank you for your answer. I import it from the rather unknown program "FORM" from Jos Vermaseren (I think it is only popular among theoretical particle physicists). I'm not sure if FORM can export its declarations. |

2011-10-09 13:02:41 +0200 | asked a question | autodeclare variables Hello Everyone! Is there a way to autodeclare variables? For example: I want to import an expression from another computer program. Now this expression is stored as a string, that means I have to evaluate it in sage. sage_eval(expression) It works fine, but if the expression contains variables, these have to be manually declared first as var('variables'). I want to do this automatically, e.g.: sage_eval(expression, autodeclarevariables=on) Is there a way to do something like that? |

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