v0.36.4

Release 0.36.4 (2024-04-11)

• More generic Butcher tableau
  • Now, you can use ButcherTableau for non-embedded methods too
• More ODE integrators
  • RALS3, RALS4, RK5, BS23

Full Changelog: v0.36.2...v0.36.4

v0.36.2

Release 0.36.2 (2024-04-10)

• Now, you can report current states if your constraints are violated.
  • ODEError::ConstraintViolation -> ODEError::ConstraintViolation(f64, Vec<f64>, Vec<f64>)
  • for detailed information, see docs for ODEError
• Add docs for ODEError

Full Changelog: v0.36.1...v0.36.2

v0.36.1

Release 0.36.1 (2024-04-09)

• Fix all warnings in peroxide

• Change redundant method

  • Vec<f64>::resize -> Vec<f64>::reshape

• Error handling for concatenation

  • cbind & rbind now returns Result<Matrix, ConcatenateError>

• New non-macro utils

  • column_stack(&[Vec<f64>]) -> Result<Matrix, ConcatenateError>
  • row_stack(&[Vec<f64>]) -> Result<Matrix, ConcatenateError>
  • rand_with_rng(usize, usize, &mut Rng) -> Matrix

• Generic Butcher tableau trait (now for embedded Runge-Kutta methods)

  pub trait ButcherTableau {
      const C: &'static [f64];
      const A: &'static [&'static [f64]];
      const BH: &'static [f64];
      const BL: &'static [f64];
  
      fn tol(&self) -> f64;
      fn safety_factor(&self) -> f64;
      fn max_step_size(&self) -> f64;
      fn min_step_size(&self) -> f64;
      fn max_step_iter(&self) -> usize;
  }

  • Implement ODEIntegrator for ButcherTableau

    • Just declare ButcherTableau then step is free

  • Three available embedded Runge-Kutta methods

    • RKF45: Runge-Kutta-Fehlberg 4/5th order
    • DP45: Dormand-Prince 4/5th order
    • TSIT45: Tsitouras 4/5th order

Full Changelog: v0.36.0...v0.36.1

v0.36.0

Release 0.36.0 (2024-04-08)

Huge Update - Error handling & Whole new ODE

Error handling

• Add thiserror for error handling
• Implement errors for cubic spline & cubic hermite spline.
• Implement errors for weighted uniform distribution & PRS.

Seedable sampling

• Now, all distribution has sample_with_rng method.
• There are two wrappers for SeedableRng
  • smallrng_from_seed : Performant but not secure
  • stdrng_from_seed : Performant enough and secure enough

Whole new ODE

• Remove all boilerplates.
• Now, ODE is composed of traits.
  • ODEProblem: Trait for defining and ODE problem.
  • ODEIntegrator: Trait for integrating ODE.
    • RK4: Runge-Kutta 4th order
    • RKF45: Runge-Kutta-Fehlberg 4/5th order
    • GL4: Gauss-Legendre 4th order
    • You can implement your own integrator.
  • ODESolver: Trait for solving ODE.
    • BasicODESolver: Basic ODE solver - define range of t, initial step size and integrate it.
    • You can implement your own solver.
• For more information, see docs for ode.

Full Changelog: v0.35.1...v0.36.0

v0.35.1

Full Changelog: v0.34.7...v0.35.1

Releases info

v0.34.7

More updates for plot feature

• Make legend optional (Now, no legend is available)
• Implement set_line_style. Here are available line styles.
  • LineStyle::Solid
  • LineStyle::Dashed
  • LineStyle::Dotted
  • LineStyle::DashDot
• Implement set_color
• Implement set_alpha
• More markers.

Getter for ODE

• Add explicit getter for ExplicitODE and ImplicitODE for various fields.

Full Changelog: v0.34.6...v0.34.7