Documentation API of the 'cern.colt.matrix.tfloat.impl.DenseFloatMatrix3D' Java class

Class DenseFloatMatrix3D

  • All Implemented Interfaces:
    Serializable, Cloneable

    public class DenseFloatMatrix3Dextends FloatMatrix3D
    Dense 3-d matrix holding float elements. First see the package summary and javadoc tree view to get the broad picture.


    Internally holds one single contiguous one-dimensional array, addressed in (in decreasing order of significance): slice major, row major, column major. Note that this implementation is not synchronized.

    Time complexity:

    O(1) (i.e. constant time) for the basic operations get, getQuick, set, setQuick and size,

    Applications demanding utmost speed can exploit knowledge about the internal addressing. Setting/getting values in a loop slice-by-slice, row-by-row, column-by-column is quicker than, for example, column-by-column, row-by-row, slice-by-slice. Thus

     for (int slice = 0; slice < slices; slice++) {     for (int row = 0; row < rows; row++) {         for (int column = 0; column < columns; column++) {             matrix.setQuick(slice, row, column, someValue);         }     } } 
    is quicker than
     for (int column = 0; column < columns; column++) {     for (int row = 0; row < rows; row++) {         for (int slice = 0; slice < slices; slice++) {             matrix.setQuick(slice, row, column, someValue);         }     } } 
    See Also:
    Serialized Form

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