siconos.kernel.NormalConeNSL (Python class)

class siconos.kernel.NormalConeNSL(size: unsigned int, H: SP::SimpleMatrix, K: SP::SiconosVector)[source]

Bases: siconos.kernel.NonSmoothLaw

NormalCone NonSmoothLaw.

This class formalizes a nonsmooth law in the form of a normal cone inclusion i.e.

\[y \in \mathcal{N}_{-P}(-\lambda),\]

where \(P\) is the polytopic set. This is a generalization of the RelayNSL law, where the set \(P\) is a scaled box. Note that there exists an inverse of the previous relation in the form

\[-\lambda \in \partial \sigma_{-P} (y),\]

with \(\sigma_{-P}\) the support function of \(-P\) and \(\partial \sigma_{-P}\) the subdifferential of this support function.

Generated class (swig), based on C++ header Program listing for file kernel/src/modelingTools/NormalConeNSL.hpp.


NormalConeNSL(size, array_like (np.float64, 2D) H, array_like (np.float64, 1D) K)

constructor with the value of the NormalConeNSL attributes

  • size – size of the NonSmoothLaw
  • H – matrix in the (H-K)-representation of the polytope P
  • K – vector in the (H-K)-representation of the polytope P
H() -> array_like (np.float64, 2D)[source]

get H

Returns:a reference to the H matrix
K() -> array_like (np.float64, 1D)[source]

get K

Returns:a reference to the K vector
display() → None[source]

print the data to the screen

isVerified() → bool[source]

check the ns law to see if it is verified

Returns:true if the NS Law is verified, false otherwise