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[ascl:1501.007]
LP-VIcode: La Plata Variational Indicators Code

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

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.