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Upstream project repository
A common interface to nonlinear optimization algorithms, with and without derivatives.
Investigate How do fixed nonlinear optimizers differ in feasibility and stationarity at equal evaluation budgets?
Upstream project repository
Tools for examining and comparing numerical methods for ordinary differential equations.
Investigate Do a selected Runge–Kutta method's reported order conditions agree with exact coefficient calculations?
Upstream project repository
Just-in-time compilation of supported Python numerical functions using LLVM.
Investigate Do strict and relaxed floating-point compilation settings change a cancellation-sensitive reduction?
Upstream project repository
Numerical derivatives, gradients, Jacobians, and Hessians with step-selection methods.
Investigate How do derivative estimates change across step sizes for a fixed family of smooth and cancellation-sensitive functions?
Upstream project repository
Evaluation of numerical array expressions with a specialized execution engine.
Investigate Does fused expression evaluation agree with a high-precision reference near cancellation?
Upstream project repository
An operator-splitting numerical solver for convex quadratic programs.
Investigate Do warm starts change work while preserving fixed quadratic-program residual tolerances?
Upstream project repository
Algebraic multigrid methods for solving large sparse linear systems.
Investigate How does multigrid residual reduction change with the size of a fixed Poisson discretization?
Upstream project repository
Symbolic and numerical tools for deriving and simulating multibody dynamics.
Investigate Does a simple generated mechanical model satisfy the independently derived dynamics and energy behavior?
Upstream project repository
Model-order reduction tools for parameterized dynamical systems and numerical models.
Investigate How does reduced-basis dimension affect held-out error in a fixed linear parametric model?
Upstream project repository
Python bindings for coordinate transformations and geodetic calculations in PROJ.
Investigate Does a fixed coordinate transformation preserve the declared axis convention and a prespecified round-trip tolerance?
Upstream project repository
Tensor expression graphs, automatic differentiation, and compilation for numerical computation.
Investigate Do automatic gradients match analytic derivatives across a fixed grid of nonsingular inputs?
Upstream project repository
Analysis and design tools for linear and nonlinear control systems.
Investigate Do state-space and transfer-function forms produce the same first-order step response within fixed tolerances?
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