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2017-02-14 11:42:39 -0500 | asked a question | Memory error mixing exact numbers and decimal ones Hi, I wonder why this code gives an error in Sage 7.5.1: |

2017-02-10 10:20:56 -0500 | commented answer | Evaluating the derivative of piecewise functions Thank you @paulmasson. So that means that |

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2017-02-09 10:44:53 -0500 | asked a question | find_root does not fulfill tolerance In Sage 7.3 the result of: is One would expect that the error with the exact solution (x=0) would be lower than 1e-13. I imagine that the multiplicity of the root produces this effect. Does somebody know the numerical algorithm behind find_root? Thanks in advance.
Since 4x^4-x^2 has a root in 0 with multiplicity 2, this condition is not fulfilled. Is there any other command in Sage different from |

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2017-02-04 19:09:52 -0500 | asked a question | Evaluating the derivative of piecewise functions Hi, In Sage 7.5 you can numerically evaluate the derivative of a regular symbolic expression using: Old However, new Thanks in advance. |

2015-06-05 08:58:30 -0500 | commented answer | Differences between load and attach The point is, if there is not a slowdown in the 'attach' performance, should not be always 'attach' preferred over 'load'? I.e., same speed, more features! |

2015-06-03 11:18:02 -0500 | asked a question | Differences between load and attach Is the automatic reload of modified files the only difference between 'load' and 'attach'? In such case, if there is not a slowdown in the 'attach' performance, should not be always 'attach' preferred over 'load'? |

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