Description Usage Arguments Examples

Powell's method for finding a function local minimum. The function need not be differentiable, and no derivatives are taken. The function must be a real-valued function of a fixed number of real-valued inputs.

1 |

`exp` |
Expression of the function to be minimized. |

`eps` |
Precision of the approximation, recommended value is 10^-10. |

`G` |
Inner approximation coefficient, recommended value is 10^-2. |

`eta` |
Inner approximation coefficient, recommended value is G*2. |

`m` |
Inner steps, recommended value is 20. |

`k` |
Second inner approximation steps, recommended value is 20. |

`x` |
Starting point of the approximation. |

`v` |
A character vector of the functions variables. Exmaple: the two dimension fuction x1*x1+10*x2*x2 needs a c("x1","x2") vector. |

`n` |
Maximum setps to make while approximating, if the calculation reaches this number it exits with the current value and point. Recommended to be 10000. |

1 2 3 4 5 6 7 8 9 10 11 |

```
[1] "Stacionarius pont: "
[1] 1 1
[1] "Fuggveny ertek: "
[1] 0
[1] "Lepesszam: "
[1] 1
```

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