polykin 0.8.0

The main changes include:

• Extend module polykin.math:

  • add machine constants module polykin.math.machine and expose it at the top-level math namespace.
  • add optimization subpackage polykin.math.optimization with:
    • one-dimensional methods: fmin_brent, fmin_secant.
    • multidimensional methods: fmin_qnewton, fmin_nelder_mead.
    • shared global strategies/utilities: line_search, dogleg.
    • dedicated optimization result types: OptimumResult, VectorOptimumResult.

• Extend/refactor module polykin.math.fixpoint:

  • add new fixed-point solvers: fixpoint_damped, fixpoint_dem, fixpoint_steffensen.
  • update existing solvers (including Anderson and Wegstein implementations) for improved consistency with the new math infrastructure.

• Refactor module polykin.math.roots:

  • move q-Newton vector root solver implementation to polykin.math.roots.qnewton.
  • keep scalar/root result APIs while aligning internals with shared machine constants and optimization helpers.

• Improve numerical infrastructure in polykin.math.derivatives and polykin.math.special:

  • substantial updates to numerical differentiation routines.
  • internal cleanup of special-function implementations.

• Internal consistency updates across the codebase:

  • migrate numerical precision constants usage from polykin.utils.math to polykin.math.machine.
  • update dependent modules in kinetics, transport, thermo, properties, and copolymerization to use the new math utilities.

• Compatibility notes:

  • imports from polykin.math.roots.vector should be migrated to the current roots API.
  • code importing eps, huge, or tiny from polykin.utils.math should migrate to polykin.math.machine.

polykin 0.7.0

The main changes include:

• Extend polykin.thermo.acm module:

  • rename base classes.
  • expose/doc base class MolecularACM.
  • add default gamma implementation.
  • add ScatchardHildebrandand ScatchardHildebrand_gamma.

• Extend polykin.thermo.eos module:

  • expose/doc base classes GasEoS and CubicEoS.
  • GasEoS gained default implementation for P, phi.
  • GasEoS gained methods beta, gR, aR, hR, sR, vR.
  • GasLiquidEoS gained methods beta, kappa.

• Extend/refactor polykin.thermo.flash module:

  • add method K_Wilson.
  • FlashResult was renamed to Flash2Result.

• Extend module polykin.kinetics.emulsion:

  • add SE methods: nbar_Ugelstad, n2bar, compartmentalization_factor.
  • add radical entry methods: kentry_collision, kentry_diffusion, kentry_diffusion_reversible.
  • add radical desorption methods: kdesorption_Asua, K0_Nomura.

• Refactor polykin.properties.pvt.Tait:

  • Tait.beta(...) was renamed to Tait.kappa(...) and now represents the isothermal compressibility factor.

polykin 0.6.0

The main changes include:

• Refactor pvt and pvt_polymer.
  • remove Flory, SanchezLacombe and HartmannHaque.
  • move Tait to pvt.
• Split transport module into flow and hmt.
• Extend flow module:
  • add pressure relief valve calculation methods.
  • add rheological models.
• Refactor and extend the math module:
  • add root_brent, rootvec_qnewton.
  • add fixpoint_anderson, fixpoint_wegstein.
  • add jacobian_forward, hessian_forward.
• Extend thermo module:
  • add flash2_PT, flash2_PV, flash2_TV.

polykin 0.5.7

Full Changelog: v0.5.6...v0.5.7

v0.5.6

bump to 0.5.6

v0.5.5

bump to 0.5.5