The tool Numerical computation of sequenceshelps to analyse numerical sequences and illustrates the connection between the definition of a sequence in terms of an expression and its numerical properties. It gives you a "feeling" for the possible behaviour of sequences and invites to do some experiments. |

The tool Numerical computation of seriesallows to analyse a given series in terms of its sequence of partial sums. It helps understanding what the convergence of a series actually is. |

The anecdote What is a fault?
A tale that makes you smileillustrates that mathematical "faults" are often simple misunderstandings that may be identified and corrected. |

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