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Package DataFormats/Math

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Description

Persistent classes for mathematical types. This package is based on ROOT/SEAL MathCore and Smatrix libraries.

Public interface

typedefs of commonly used MathCore and and Smatrix types. In all cases, the elements are of type Double32_t, i.e.: are stored by default as float and represented in memory as double. Classes whose typedefs end by D store elements as double, and classes whose typedefs end by F store elements as float,

• Spatial Vectors:
  • math::XYZVector: spatial vector with cartesian internal representation.
  • math::XYZVectorD: same as above, with double elements.
  • math::XYZVectorF: same as above, with float elements.
  • math::RhoEtaPhiVector: spatial vector with cylindrical internal representation using pseudorapidity.
  • math::RhoEtaPhiVectorD: same as above, with double elements.
  • math::RhoEtaPhiVectorF: same as above, with float elements.
  • math::RThetaPhiVector: spatial vector with polar internal representation.
  • math::RThetaPhiVectorD: same as above, with double elements.
  • math::RThetaPhiVectorF: same as above, with float elements.

• Spatial Points:
  • math::XYZPoint: point in space with cartesian internal representation.
  • math::XYZPointD: same as above, with double elements.
  • math::XYZPointF: same as above, with float elements.

• Lorentz Vectors:
  • math::XYZTLorentzVector: Lorentz vector with cartesian internal representation.
  • math::XYZTLorentzVector: same as above, with double elements.
  • math::XYZTLorentzVector: same as above, with float elements.
  • math::PtEtaPhiELorentzVector: Lorentz vector with cylindrical internal representation using pseudorapidity.
  • math::PtEtaPhiELorentzVectorD: same as above, with double elements.
  • math::PtEtaPhiELorentzVectorF: same as above, with float elements.

• Fixed Size Vectors:
  • math::Vector<N>::type: Fixed size N-dimensional vector.
  • math::VectorD<N>::type: same as above, with double elements.
  • math::VectorF<N>::type: same as above, with float elements.

• Fixed size Matrices:
  • math::Error<N>::type: NxN symmetric matrix.
  • math::ErrorD<N>::type: same as above, with double elements.
  • math::ErrorF<N>::type: same as above, with float elements.

Dictionaries

Reflex dictionaries are created for all of the above math types, in particular for matrices and vectors up to N=6. Dictionaries are also created for std::vector of the math types and for edm::Wrapper corresponding to the math types and std::vector of the math types.

Modules

None.

Unit tests and examples

None.

Status and planned development

Stable. The dictionary generation for this package can be replaced eventyally using the RELAX project.

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Last updated: @ L. Lista

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