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2012-12-02 05:16:16 +0100 | commented question | Solve contains wrong solution I know, that I could only solve for f'(x)==0 and filter for f''(x)<0 but solve shouldn't contain solutions like that, I think. |

2012-12-02 04:50:28 +0100 | commented answer | Solve contains wrong solution surely there must be something slightly off with this solution because for x=1 y is always 0. Only the local maximum at (t - 2)/t changes. |

2012-12-01 22:14:02 +0100 | asked a question | Solve contains wrong solution Hello, I tried to following to find a maxima of a function: And the solution sage spits out are: I understand that sage cannot evaluate the validity of the second solution but the first one surely is no solution at all. Why does it give me this solution or am I doing anything wrong? |

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