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Astrophysics Source Code Library

Making codes discoverable since 1999

Searching for codes credited to 'Maffione, Nicolás'

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[ascl:1501.007] LP-VIcode: La Plata Variational Indicators Code
Carpintero, Daniel; Darriba, Luciano; Maffione, Nicolás

LP-VIcode computes variational chaos indicators (CIs) quickly and easily. The following CIs are included:

  • Lyapunov Indicators, also known as Lyapunov Characteristic Exponents, Lyapunov Characteristic Numbers or Finite Time Lyapunov Characteristic Numbers (LIs)
  • Mean Exponential Growth factor of Nearby Orbits (MEGNO)
  • Slope Estimation of the largest Lyapunov Characteristic Exponent (SElLCE)
  • Smaller ALignment Index (SALI)
  • Generalized ALignment Index (GALI)
  • Fast Lyapunov Indicator (FLI)
  • Orthogonal Fast Lyapunov Indicator (OFLI)
  • Spectral Distance (SD)
  • dynamical Spectra of Stretching Numbers (SSNs)
  • Relative Lyapunov Indicator (RLI)

[ascl:2206.015] Smart: Automatic differentiation of accelerations and variational equations
Carpintero, Daniel D.; Maffione, Nicolás P.; Gómez, Facundo A.

Smart provides pre-processing for LP-VIcode (ascl:1501.007). It computes the accelerations and variational equations given a generic user-defined potential function, eliminating the need to calculate manually the accelerations and variational equations.