## Uses of Interface
cern.colt.function.DoubleDoubleFunction

- Packages that use DoubleDoubleFunction
  Package | Description
  --- | ---
  cern.colt.matrix | Matrix interfaces and factories; efficient and flexible dense and sparse 1, 2, 3 and d-dimensional matrices holding objects or primitive data types such as `int`, `double`, etc; Templated, fixed sized (not dynamically resizable); Also known as multi-dimensional arrays or Data Cubes.
  cern.colt.matrix.impl | Matrix implementations; You normally need not look at this package, because all concrete classes implement the abstract interfaces of `cern.colt.matrix`, without subsetting or supersetting.
  cern.colt.matrix.linalg | Linear Algebraic matrix computations operating on `DoubleMatrix2D` and `DoubleMatrix1D`.
  cern.jet.math | Tools for basic and advanced mathematics: Arithmetics and Algebra, Polynomials and Chebyshev series, Bessel and Airy functions, Function Objects for generic function evaluation, etc.
  hep.aida.bin | Multisets (bags) with efficient statistics operations defined upon; This package requires the Colt distribution.

- - ### Uses of DoubleDoubleFunction in cern.colt.matrix

    Methods in cern.colt.matrix with parameters of type DoubleDoubleFunction
    Modifier and Type | Method and Description
    --- | ---
    `double` | DoubleMatrix3D.`aggregate(DoubleDoubleFunction aggr, DoubleFunction f)` Applies a function to each cell and aggregates the results.
    `double` | DoubleMatrix2D.`aggregate(DoubleDoubleFunction aggr, DoubleFunction f)` Applies a function to each cell and aggregates the results.
    `double` | DoubleMatrix1D.`aggregate(DoubleDoubleFunction aggr, DoubleFunction f)` Applies a function to each cell and aggregates the results.
    `double` | DoubleMatrix1D.`aggregate(DoubleMatrix1D other, DoubleDoubleFunction aggr, DoubleDoubleFunction f)` Applies a function to each corresponding cell of two matrices and aggregates the results.
    `double` | DoubleMatrix2D.`aggregate(DoubleMatrix2D other, DoubleDoubleFunction aggr, DoubleDoubleFunction f)` Applies a function to each corresponding cell of two matrices and aggregates the results.
    `double` | DoubleMatrix3D.`aggregate(DoubleMatrix3D other, DoubleDoubleFunction aggr, DoubleDoubleFunction f)` Applies a function to each corresponding cell of two matrices and aggregates the results.
    `DoubleMatrix1D` | DoubleMatrix1D.`assign(DoubleMatrix1D y, DoubleDoubleFunction function)` Assigns the result of a function to each cell; `x[i] = function(x[i],y[i])`.
    `DoubleMatrix1D` | DoubleMatrix1D.`assign(DoubleMatrix1D y, DoubleDoubleFunction function, IntArrayList nonZeroIndexes)` Assigns the result of a function to each cell; `x[i] = function(x[i],y[i])`.
    `DoubleMatrix2D` | DoubleMatrix2D.`assign(DoubleMatrix2D y, DoubleDoubleFunction function)` Assigns the result of a function to each cell; `x[row,col] = function(x[row,col],y[row,col])`.
    `DoubleMatrix3D` | DoubleMatrix3D.`assign(DoubleMatrix3D y, DoubleDoubleFunction function)` Assigns the result of a function to each cell; `x[row,col] = function(x[row,col],y[row,col])`.

  - ### Uses of DoubleDoubleFunction in cern.colt.matrix.impl

    Methods in cern.colt.matrix.impl with parameters of type DoubleDoubleFunction
    Modifier and Type | Method and Description
    --- | ---
    `DoubleMatrix1D` | DenseDoubleMatrix1D.`assign(DoubleMatrix1D y, DoubleDoubleFunction function)` Assigns the result of a function to each cell; `x[i] = function(x[i],y[i])`.
    `DoubleMatrix2D` | SparseDoubleMatrix2D.`assign(DoubleMatrix2D y, DoubleDoubleFunction function)`
    `DoubleMatrix2D` | RCDoubleMatrix2D.`assign(DoubleMatrix2D y, DoubleDoubleFunction function)`
    `DoubleMatrix2D` | DenseDoubleMatrix2D.`assign(DoubleMatrix2D y, DoubleDoubleFunction function)` Assigns the result of a function to each cell; `x[row,col] = function(x[row,col],y[row,col])`.

  - ### Uses of DoubleDoubleFunction in cern.colt.matrix.linalg

    Methods in cern.colt.matrix.linalg with parameters of type DoubleDoubleFunction
    Modifier and Type | Method and Description
    --- | ---
    `void` | SmpBlas.`assign(DoubleMatrix2D A, DoubleMatrix2D B, DoubleDoubleFunction function)`
    `void` | SeqBlas.`assign(DoubleMatrix2D A, DoubleMatrix2D B, DoubleDoubleFunction function)`
    `void` | Blas.`assign(DoubleMatrix2D x, DoubleMatrix2D y, DoubleDoubleFunction function)` Assigns the result of a function to each cell; `x[row,col] = function(x[row,col],y[row,col])`.

  - ### Uses of DoubleDoubleFunction in cern.jet.math

    Classes in cern.jet.math that implement DoubleDoubleFunction
    Modifier and Type | Class and Description
    --- | ---
    `class` | `PlusMult` Only for performance tuning of compute intensive linear algebraic computations.

    Fields in cern.jet.math declared as DoubleDoubleFunction
    Modifier and Type | Field and Description
    --- | ---
    `static DoubleDoubleFunction` | Functions.`atan2` Function that returns `Math.atan2(a,b)`.
    `static DoubleDoubleFunction` | Functions.`compare` Function that returns `a < b ? -1 : a > b ? 1 : 0`.
    `static DoubleDoubleFunction` | Functions.`div` Function that returns `a / b`.
    `static DoubleDoubleFunction` | Functions.`equals` Function that returns `a == b ? 1 : 0`.
    `static DoubleDoubleFunction` | Functions.`greater` Function that returns `a > b ? 1 : 0`.
    `static DoubleDoubleFunction` | Functions.`IEEEremainder` Function that returns `Math.IEEEremainder(a,b)`.
    `static DoubleDoubleFunction` | Functions.`less` Function that returns `a < b ? 1 : 0`.
    `static DoubleDoubleFunction` | Functions.`lg` Function that returns `Math.log(a) / Math.log(b)`.
    `static DoubleDoubleFunction` | Functions.`max` Function that returns `Math.max(a,b)`.
    `static DoubleDoubleFunction` | Functions.`min` Function that returns `Math.min(a,b)`.
    `static DoubleDoubleFunction` | Functions.`minus` Function that returns `a - b`.
    `static DoubleDoubleFunction` | Functions.`mod` Function that returns `a % b`.
    `static DoubleDoubleFunction` | Functions.`mult` Function that returns `a * b`.
    `static DoubleDoubleFunction` | Functions.`plus` Function that returns `a + b`.
    `static DoubleDoubleFunction` | Functions.`plusAbs` Function that returns `Math.abs(a) + Math.abs(b)`.
    `static DoubleDoubleFunction` | Functions.`pow` Function that returns `Math.pow(a,b)`.

    Methods in cern.jet.math that return DoubleDoubleFunction
    Modifier and Type | Method and Description
    --- | ---
    `static DoubleDoubleFunction` | Functions.`chain(DoubleDoubleFunction f, DoubleFunction g, DoubleFunction h)` Constructs the function `f( g(a), h(b) )`.
    `static DoubleDoubleFunction` | Functions.`chain(DoubleFunction g, DoubleDoubleFunction h)` Constructs the function `g( h(a,b) )`.
    `static DoubleDoubleFunction` | Functions.`minusMult(double constant)` Constructs a function that returns `a - b*constant`.
    `static DoubleDoubleFunction` | Functions.`plusMult(double constant)` Constructs a function that returns `a + b*constant`.
    `static DoubleDoubleFunction` | Functions.`swapArgs(DoubleDoubleFunction function)` Constructs a function that returns `function.apply(b,a)`, i.e.

    Methods in cern.jet.math with parameters of type DoubleDoubleFunction
    Modifier and Type | Method and Description
    --- | ---
    `static DoubleFunction` | Functions.`bindArg1(DoubleDoubleFunction function, double c)` Constructs a unary function from a binary function with the first operand (argument) fixed to the given constant `c`.
    `static DoubleFunction` | Functions.`bindArg2(DoubleDoubleFunction function, double c)` Constructs a unary function from a binary function with the second operand (argument) fixed to the given constant `c`.
    `static DoubleDoubleFunction` | Functions.`chain(DoubleDoubleFunction f, DoubleFunction g, DoubleFunction h)` Constructs the function `f( g(a), h(b) )`.
    `static DoubleDoubleFunction` | Functions.`chain(DoubleFunction g, DoubleDoubleFunction h)` Constructs the function `g( h(a,b) )`.
    `static DoubleDoubleFunction` | Functions.`swapArgs(DoubleDoubleFunction function)` Constructs a function that returns `function.apply(b,a)`, i.e.

  - ### Uses of DoubleDoubleFunction in hep.aida.bin

    Methods in hep.aida.bin with parameters of type DoubleDoubleFunction
    Modifier and Type | Method and Description
    --- | ---
    `double` | DynamicBin1D.`aggregate(DoubleDoubleFunction aggr, DoubleFunction f)` Applies a function to each element and aggregates the results.

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