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SciML / DifferentialEquations.jl

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Multi-language suite for high-performance solvers of differential equations and scientific machine learning (SciML) components

python r julia ode dde partial-differential-equations dynamical-systems differential-equations differentialequations sde pde dae spde stochastic-differential-equations delay-differential-equations stochastic-processes differential-algebraic-equations scientific-machine-learning neural-differential-equations sciml
  • Updated Aug 16, 2020
  • Julia

SciML / ModelingToolkit.jl

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A modeling framework for automatically parallelized scientific machine learning (SciML) in Julia. A computer algebra system for integrated symbolics for physics-informed machine learning and automated transformations of differential equations

computer-algebra julia ode symbolic dde differential-equations ordinary-differential-equations sde pde dae stochastic-differential-equations delay-differential-equations symbolic-computation neural-ode scientific-machine-learning neural-differential-equations sciml symbolic-numerics
  • Updated Sep 16, 2020
  • Julia

AMReX-Astro / Castro

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Recommend a new default value of gravity.abs_tol

maxpkatz
maxpkatz commented Sep 26, 2017

The Poisson solve absolute tolerance sets the accuracy of the Poisson solve. Given the value of abs_tol, the error level targeted in the Poisson solve is abs_tol * 4 * pi * G * rho_max, where rho_max is the maximum density on the domain. For Cartesian simulations the default value is 1.e-11, and for non-Cartesian the default value is 1.e-10.

At high resolution, and/or for complicated mass distr

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good first issue gravity help wanted study

SciML / DiffEqBase.jl

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The lightweight Base library for shared types and functionality for defining differential equation and scientific machine learning (SciML) problems

ode dde partial-differential-equations differential-equations ordinary-differential-equations differentialequations sde pde dae stochastic-differential-equations delay-differential-equations differential-algebraic-equations neural-ode scientific-machine-learning neural-differential-equations sciml
  • Updated Sep 15, 2020
  • Julia

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