Packages from Jacob Williams (jacobwilliams)

argv-fortran

Jacob Williams (jacobwilliams) / argv-fortran

Read command-line arguments as allocatable strings.

N N1 N3

Package details · Repository · Try in playground

astro-fortran

Jacob Williams (jacobwilliams) / astro-fortran

Fundamental astronomy models and coordinate transformations refactored from IAU SOFA.

P Z

Package details · Repository · Try in playground

Checked drivers: astro-sky-reference

bspline-fortran

Jacob Williams (jacobwilliams) / bspline-fortran

One- to six-dimensional B-spline interpolation.

E E1 E1a E2 E2a

Package details · Repository · Try in playground

Checked drivers: bspline-fortran-shape-interpolation · bspline-tensor-surface

carlson-elliptic-integrals

Jacob Williams (jacobwilliams) / carlson-elliptic-integrals

Carlson symmetric elliptic integrals for pendulum periods and other applications.

C C14

Package details · Repository · Try in playground

Checked drivers: carlson-rf-reference

conmax

Jacob Williams (jacobwilliams) / conmax

Linear, quadratic and constrained minimax optimization routines.

G G2 G2a K K2

Package details · Repository · Try in playground

Checked drivers: conmax-linear-program-certificate

conmin

Jacob Williams (jacobwilliams) / conmin

Constrained nonlinear minimization using feasible directions and reverse communication.

G G2 G2h G2h3 G2h3b G2h3b1 G2h3b1b

Package details · Repository · Try in playground

Checked drivers: conmin-ball-reference

csv-fortran

Jacob Williams (jacobwilliams) / csv-fortran

Read and write CSV files with typed columns.

N N1

Package details · Repository · Try in playground

daglib

Jacob Williams (jacobwilliams) / daglib

Directed acyclic graphs and topological ordering of dependencies.

N N4 P

Package details · Repository · Try in playground

Checked drivers: daglib-order-reference

ddeabm

Jacob Williams (jacobwilliams) / ddeabm

Adaptive Adams-Bashforth-Moulton ODE integration with event finding.

I I1 I1a I1a1 I1a1b

Package details · Repository · Try in playground

Checked drivers: ddeabm-decay-oscillator

dop853

Jacob Williams (jacobwilliams) / dop853

Adaptive eighth-order Runge-Kutta integration of ordinary differential equations.

I I1 I1a I1a1 I1a1a

Package details · Repository · Try in playground

Checked drivers: dop853-decay-oscillator

dvode

Jacob Williams (jacobwilliams) / dvode

Variable-coefficient multistep ODE solver for stiff and nonstiff systems.

I I1 I1a I1a2

Package details · Repository · Try in playground

Checked drivers: dvode-stiff-two-scale

finterp

Jacob Williams (jacobwilliams) / finterp

Multidimensional linear and nearest-neighbor interpolation.

E E1 E1a E2 E2a

Package details · Repository · Try in playground

Checked drivers: finterp-shape-interpolation · finterp-bilinear-surface

flist

Jacob Williams (jacobwilliams) / flist

Linked lists storing values of different types under named keys.

N N4 N5

Package details · Repository · Try in playground

fmin

Jacob Williams (jacobwilliams) / fmin

Derivative-free minimization of a scalar function on an interval.

G G1 G1a G1a1 G1a1a

Package details · Repository · Try in playground

Checked drivers: fmin-sine

fortran-astrodynamics-toolkit

Jacob Williams (jacobwilliams) / Fortran-Astrodynamics-Toolkit

Orbital mechanics, coordinate transformations, and spacecraft trajectory tools.

P Z

Package details · Repository · Try in playground

Checked drivers: fat-orbit-reference

fortran-search-and-sort

Jacob Williams (jacobwilliams) / fortran-search-and-sort

Generic sorting, searching, and duplicate removal for arrays.

N N5 N6

Package details · Repository · Try in playground

fortran_function_parser

Jacob Williams (jacobwilliams) / fortran_function_parser

Parse and evaluate mathematical expressions supplied as strings.

C N N3

Package details · Repository · Try in playground

Checked drivers: function-parser-identities

geodesic-fortran

Jacob Williams (jacobwilliams) / geodesic-fortran

Distances, bearings and geodetic coordinate transformations on spheres and ellipsoids.

P

Package details · Repository · Try in playground

Checked drivers: geodesic-reference

json-fortran

Jacob Williams (jacobwilliams) / json-fortran

Read, write, and manipulate JSON documents.

N N1 N3

Package details · Repository · Try in playground

kronrod

Jacob Williams (jacobwilliams) / kronrod

Generate Gauss-Kronrod quadrature nodes and weights using arbitrary precision.

H H2 H2c

Package details · Repository · Try in playground

Checked drivers: kronrod-moments-reference

lbfgsb

Jacob Williams (jacobwilliams) / lbfgsb

Limited-memory quasi-Newton optimization with variable bounds.

G G2 G2h G2h1 G2h1a G2h1a2

Package details · Repository · Try in playground

Checked drivers: lbfgsb-box-quadratic

lsmr

Jacob Williams (jacobwilliams) / LSMR

Iterative solution of sparse linear equations and least-squares problems.

D D2 D9 D9a D9a1 K K1

Package details · Repository · Try in playground

Checked drivers: lsmr-least-squares-reference

lsqr

Jacob Williams (jacobwilliams) / LSQR

Iterative sparse linear systems and least-squares solver using coordinate storage.

D D2 D9 D9a D9a1 K K1

Package details · Repository · Try in playground

Checked drivers: lsqr-least-squares-reference

lusol

Jacob Williams (jacobwilliams) / lusol

Sparse LU factorization, linear solves and efficient column updates.

D D2 D2a D2a4

Package details · Repository · Try in playground

Checked drivers: lusol-update-reference

mersenne-twister-fortran

Jacob Williams (jacobwilliams) / mersenne-twister-fortran

Reproducible 64-bit Mersenne Twister random number generation.

L L6 L6a L6a21

Package details · Repository · Try in playground

Checked drivers: mt19937-64-reference-sequence

minpack

Jacob Williams (jacobwilliams) / minpack

Nonlinear equation solvers and nonlinear least-squares fitting.

F F2 G G1 G1b G1b1 G1b1a G1b1b K K1

Package details · Repository · Try in playground

Checked drivers: minpack-bard · minpack-rosenbrock-system · minpack-lmder-reference

mpfun2020-var1

Jacob Williams (jacobwilliams) / MPFUN2020-var1

Thread-safe arbitrary-precision real and complex arithmetic.

A A3 A3c A4 A4c

Package details · Repository · Try in playground

Checked drivers: mpfun-real-addition · mpfun-complex-addition

nlesolver-fortran

Jacob Williams (jacobwilliams) / nlesolver-fortran

Newton and quasi-Newton solvers for dense or sparse nonlinear equation systems.

F F2

Package details · Repository · Try in playground

Checked drivers: nlesolver-rosenbrock-system

numdiff

Jacob Williams (jacobwilliams) / NumDiff

Numerical derivatives and sparse Jacobian estimation.

H H1

Package details · Repository · Try in playground

Checked drivers: numdiff-analytic-derivatives

optgra

Jacob Williams (jacobwilliams) / optgra

Constrained optimization designed for nearly linear problems with many constraints.

G G2 G2h G2h3 G2h3b G2h3b1 G2h3b1b

Package details · Repository · Try in playground

Checked drivers: optgra-halfspace-reference

pchip

Jacob Williams (jacobwilliams) / PCHIP

Shape-preserving piecewise cubic interpolation.

E E1 E1a

Package details · Repository · Try in playground

Checked drivers: pchip-shape-interpolation

pikaia

Jacob Williams (jacobwilliams) / pikaia

Genetic algorithm for global optimization with reproducible random seeds.

G G2 G2i

Package details · Repository · Try in playground

Checked drivers: pikaia-rastrigin-reference

polyroots-fortran

Jacob Williams (jacobwilliams) / polyroots-fortran

Find all real and complex roots of polynomial equations using several numerical algorithms.

F F1 F1a

Package details · Repository · Try in playground

Checked drivers: polyroots-real-reference · rpoly-real-reference · cpolyroots-complex-reference

popen-fortran

Jacob Williams (jacobwilliams) / popen-fortran

Capture the text output of a subprocess.

N N1 S

Package details · Repository · Try in playground

powellopt

Jacob Williams (jacobwilliams) / PowellOpt

Powell derivative-free optimization methods including BOBYQA and COBYLA.

G G2 G2h G2h1 G2h1a G2h1a1

Package details · Repository · Try in playground

Checked drivers: bobyqa-box-reference

psqp

Jacob Williams (jacobwilliams) / psqp

Sequential quadratic programming with variable bounds and general nonlinear constraints.

G G2 G2h G2h3 G2h3b G2h3b1 G2h3b1b

Package details · Repository · Try in playground

Checked drivers: psqp-projection-reference

pyplot-fortran

Jacob Williams (jacobwilliams) / pyplot-fortran

Create PNG plots from Fortran through Python and Matplotlib.

Q

Package details · Repository · Try in playground

qdldl-fortran

Jacob Williams (jacobwilliams) / qdldl-fortran

Sparse LDL-transpose factorization, orderings and solves for quasi-definite systems.

D D2 D2b D2b4

Package details · Repository · Try in playground

Checked drivers: qdldl-quasidefinite-solve

quadpack

Jacob Williams (jacobwilliams) / quadpack

Adaptive numerical integration, including improper and oscillatory integrals.

H H2 H2a H2a1 H2a1a H2a1a1 H2a2 H2a2a H2a2a1

Package details · Repository · Try in playground

Checked drivers: quadpack-smooth · quadpack-endpoint-singular

quadrature-fortran

Jacob Williams (jacobwilliams) / quadrature-fortran

Adaptive Gaussian quadrature in one or more dimensions.

H H2 H2a H2a1 H2a1a H2a1a1

Package details · Repository · Try in playground

Checked drivers: quadrature-fortran-smooth

regridpack

Jacob Williams (jacobwilliams) / regridpack

Linear and cubic interpolation between one- to four-dimensional grids.

E E1 E1a E2

Package details · Repository · Try in playground

Checked drivers: regridpack-polynomial-reference

rklib

Jacob Williams (jacobwilliams) / rklib

A collection of fixed- and variable-step Runge-Kutta ODE integration methods.

I I1 I1a I1a1 I1a1a

Package details · Repository · Try in playground

Checked drivers: rklib-decay-oscillator

roots-fortran

Jacob Williams (jacobwilliams) / roots-fortran

Find roots of scalar functions using bracketing and other solvers.

F F1 F1b

Package details · Repository · Try in playground

Checked drivers: roots-fortran-brent

simulated-annealing

Jacob Williams (jacobwilliams) / simulated-annealing

Stochastic global optimization by simulated annealing with bounds and reproducible seeds.

G G2 G2i

Package details · Repository · Try in playground

Checked drivers: annealing-rastrigin-reference

slsqp

Jacob Williams (jacobwilliams) / slsqp

Sequential least-squares optimization with bounds and nonlinear constraints.

G G2 G2h G2h3 G2h3b G2h3b1 G2h3b1b

Package details · Repository · Try in playground

Checked drivers: slsqp-circle-equality

specfun

Jacob Williams (jacobwilliams) / specfun

Special functions including Bessel, Airy, gamma, and related functions.

C C7 C10 C19

Package details · Repository · Try in playground

Checked drivers: bernoulli-power-sums

splpak

Jacob Williams (jacobwilliams) / splpak

Least-squares fitting and evaluation of multidimensional cubic splines.

K K1

Package details · Repository · Try in playground

Checked drivers: splpak-paired-noise-fit

stringsort

Jacob Williams (jacobwilliams) / stringsort

Lexical and natural sorting of character arrays.

N N3 N6

Package details · Repository · Try in playground