Integreat`LMM`
Integreat`LMM`

LMMLinearStabilityPolynomial

LMMLinearStabilityPolynomial[lmm,ζ,μ]

creates a polynomial in ζ, parameterized by μ, whose roots determines the linear stability of lmm.

Details and Options

  • The linear stability polynomial is , where and are LMMAlphaGeneratingPolynomial and LMMBetaGeneratingPolynomial, respectively.
  • When a linear multistep method is applied to the Dahlquist test problem, , the solution is a difference equation with corresponding characteristic equation , where .

Examples

Basic Examples  (1)

Get the linear stability polynomial of the three-step Nyström method:

Tech Notes
  • Linear Multistep Methods