The Series directory contains SPL functions for manipulating series, and identifying points of interest in a series. The following functions are included:

Returns 1 if all elements of the input are non-zero. | |

Returns 1 if any element of the input is non-zero. | |

Calculates the product of each column of an array. | |

Returns the column numbers that meet a condition. | |

Returns the X and Y value of the maximum of a series. | |

Returns the X and Y value of the minimum of a series. | |

Returns the row numbers that meet a condition. | |

Returns the X and Y values of a series from a specified Y value. | |

Rounds a value towards zero. | |

Converts index values of a series to X values. | |

Marks the maximum of a series with a symbol. | |

Marks the minimum of a series with a symbol. | |

Returns the maximum of one or two input arguments. | |

Returns the minimum of one or two input arguments. | |

Extracts a 4 bit nibble from a value. | |

Returns the total number of array elements. | |

Replace outliers with linear interpolation of neighboring values. | |

Calculates the product of all values of a series or array. | |

Calculates a rational approximation using the continued fraction. | |

Releases an ActiveX server object. | |

Determine the remainder from a division. | |

Replaces values based on a logical condition. | |

Returns a 2 point series containing the dimensions of an array. | |

Returns the sign of a real, complex or series. | |

Replaces a value with previous or next value. | |

Returns the maximum of one or more input arguments. | |

Returns the minimum of one or more input arguments. | |

Converts X values of a series to indices. | |

Interpolates Y values from arbitrary X values. |