Packages from Federico Perini (perazz)

fastmath

Federico Perini (perazz) / fastmath

Approximate exponential, logarithm and inverse-square-root functions.

C C2 C4 C4b

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Checked drivers: fastmath-exp-log-reference · fastmath-rsqrt-reference

fitpack

Federico Perini (perazz) / fitpack

Spline fitting, smoothing, derivatives, and integration of curves and surfaces.

E E1 E1a E2 H H1 H2 H2a H2a2 H2a2b H2a2b2 K K1 K5

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Checked drivers: fitpack-spline-integral · fitpack-polynomial-values · fitpack-polynomial-derivatives

fortran-bessels

Federico Perini (perazz) / fortran-bessels

Bessel and modified Bessel functions, demonstrated with fixed orders zero and one.

C C10 C10b C10b1

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Checked drivers: bessels-modified-values

fortran-fast-float

Federico Perini (perazz) / fortran-fast-float

Parse decimal and exponent strings into real and integer values.

N N3

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Checked drivers: fast-float-parsing-reference

fortran-lapack

Federico Perini (perazz) / fortran-lapack

Modern linear algebra: linear systems, eigenvalues, least squares, and matrix factorizations.

D D2 D2a D2a1 D4 D4a D4a1 D5 D6 D9 D9a D9a1

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Checked drivers: fortran-lapack-dense-solve · fortran-lapack-least-squares · fortran-lapack-symmetric-eigen · fortran-lapack-qr-decomposition · fortran-lapack-svd-decomposition

fortran-primes

Federico Perini (perazz) / fortran-primes

Generate prime numbers, test primality, and factor integers.

B

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Checked drivers: primes-trial-division

fortran-regex

Federico Perini (perazz) / fortran-regex

Search text with a lightweight regular expression engine.

N N3 N5

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fortran-shlex

Federico Perini (perazz) / fortran-shlex

Split command strings into tokens while respecting quotes.

N N3

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twopnt

Federico Perini (perazz) / twopnt

Boundary-value problem solver with adaptive grids and a modern object interface.

I I1 I1b

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