Matrix classes for matrices that are block-tridiagonal and sparse, and simply "block sparse". These talk together, and furthermore containts an algorithm for inversion of the block-tridiagonal version ...

Solution of the Schodinger Eqation for Harmonic Oscillator Confined in Potential well (Dirichlet's Condition on both boundaries). Shifted Inverse Power routine is used to find eigen values Tridiagonal ...

Abstract: Computing three-phase short-circuit currents (3pSCCs) in large-scale high-voltage power systems needs to find the inverted nodal admittance matrix, which is generally time- consuming.

Recently Laurie presented a new algorithm for the computation of (2n + 1)-point Gauss-Kronrod quadrature rules with real nodes and positive weights. This algorithm first determines a symmetric ...