Release notes

Every scidart release

From the project CHANGELOG, with the publication date on pub.dev. Breaking changes come first in each release.

Show dev versions

1. 0.1.1

   2026-10-15 pub.dev GitHub release

   Fixes

   • randomArray2d(rows, columns) returns rows rows of columns values; it had rows and columns swapped
   • fft with n larger than the input appends the zeros at the end, like numpy.fft.fft; they were added at the start, which changed the phase of the result. rfft gets the same fix
   • toString of Array and Complex no longer starts with a line break, as their documentation shows. ArrayComplex prints on one line, and Array2d and Array3d print one row per line without trailing spaces

   Docs

   • API documentation builds without warnings (unresolved references in doc comments)
   • The scidart.org site is rebuilt after each release

2. 0.1.0

   2026-10-13 pub.dev GitHub release

   New

   • NormalDistribution in stats: pdf, logPdf, cdf, sf, ppf, isf, interval, sample and Array versions, like scipy.stats.norm (#44)
   • erf, erfc, arrayErf and arrayErfc in special
   • rootScalar in optimize with the bisect, brentq, newton and secant methods, like scipy.optimize.root_scalar (#56)
   • root in optimize for systems of equations with the lm (Levenberg-Marquardt), newton and broyden1 methods, returning an OptimizeResult, like scipy.optimize.root (#56)
   • PolyFitMultivariate: polynomial regression with several features and outputs, with interaction terms in the order of sklearn.preprocessing.PolynomialFeatures; uses the minimum norm solution when there are more terms than samples (#55)

3. 0.0.3

   2026-10-13 breaking pub.dev GitHub release

   Breaking changes

   • rifft follows numpy.fft.irfft: the output length is 2 * (x.length - 1) by default and the new n argument sets it. Pass n with the original length to recover signals of odd length (#47)
   • rifft returns the real part of the inverse FFT instead of the absolute value (#47)
   • == of Array, Array2d, ArrayComplex and Complex returns false for other types and lengths instead of throwing, and hashCode is consistent with ==
   • The minimum Dart SDK is 3.0.0

   Fixes

   • PolyFit no longer loops forever with Infinity or NaN values, it throws FormatException (#65)
   • PolyFit reduces the degree correctly when there are not enough distinct x values and scales the Vandermonde matrix like numpy with an overflow-safe norm, fixing wrong fits and negative R² (#37, #58). A degree larger than x.length - 1, or one whose powers of x overflow, is reduced
   • QR uses the stable Householder sign again and matches the numpy signs; QR.isFullRank accepts a tolerance
   • SVD throws FormatException for non-finite values instead of looping forever
   • median no longer sorts the caller's array (#59)
   • firwin accepts pass_zero as 'lowpass', 'highpass', 'bandpass' and 'bandstop' (#63 by j4ger)
   • simpsArray with an even number of samples and no x uses dx instead of failing
   • truncate works with values larger than 2^63

   New

   • multimode returns all the most frequent values (#62)

   Maintenance

   • Lints from package:lints replace the discontinued pedantic
   • CI runs on Linux, macOS, Windows and Chrome, with the minimum and the stable SDK
   • Publishing to pub.dev uses automated publishing (OIDC) when a v* tag is pushed

4. 0.0.2-dev.13

   dev pub.dev
   • Sort array before median calculation (#59 Closed)

5. 0.0.2-dev.12

   2022-08-22 dev pub.dev
   • Add operation created for Array2d (#48 Closed)

6. 0.0.2-dev.11

   2022-08-05 dev pub.dev
   • Enhance complex concat (#49 Closed)

7. 0.0.2-dev.10

   2022-08-05 dev pub.dev
   • PR #46 by myConsciousness merged (unnecessary imports removed and YML update)

8. 0.0.2-dev.9

   2022-01-25 dev pub.dev
   • arange moved to deprecated and replaced by createArrayRange, #39 closed
   • some typos fixed

9. 0.0.2-dev.8

   2022-01-20 dev pub.dev
   • Issue Infinite loop, memory exhausted with PolyFit(x, y, degree) #37, solved
   • some typos fixed

10. 0.0.2-dev.7

    2022-01-20 dev pub.dev
    • Typos in the Source Code

11. 0.0.2-dev.6

    2021-08-11 dev pub.dev
    • Performance improvements for Array.add

12. 0.0.2-dev.5

    2021-07-27 dev pub.dev
    • Array2d.fromArray is not deep copying the arrays in the list of arrays #31
    • subArray2d and getColumn new methods

13. 0.0.2-dev.4

    2021-05-17 dev pub.dev
    • singular value decomposition for matrix m != n (SVD)
    • SVD bug to get U, V and S matrix fixed
    • pseudo inverse matrix using Moore–Penrose (matrixPseudoInverse)
    • new tests cases with matrix m != n
    • new tests cases for SVD with matrix m != n
    • matrixSub limit index added to avoid break
    • array2dInverseOfEachElement bug for elements equal 0 fixed, just keep it 0

14. 0.0.2-dev.3

    2021-05-12 dev pub.dev
    • new array2d operations: array2dInverseOfEachElement, array2dPow

15. 0.0.2-dev.2

    2021-05-12 dev pub.dev
    • new array2d operations created: array2dAddToScalar, array2dDivisionToScalar, array2dMultiplyToScalar, array2dSubToScalar
    • new array operation created: arrayAddToScalar
    • new tests created for array and array2d operations

16. 0.0.2-dev.1

    2021-05-11 dev pub.dev
    • Null safety added to the package
    • FFT bug to big power of 2 arrays fixed
    • complexExp function created to calculate complex number natural exponent
    • arrayConcat changed to concatenate N arrays

17. 0.0.1-dev.12

    2021-02-24 dev pub.dev
    • PR #22 merged: Remove unused dart: imports

18. 0.0.1-dev.11

    2021-02-03 dev pub.dev
    • Even and Odd number double check created;
    • cross correlation for real and complex signals created;
    • dartfmt applied in the code;

19. 0.0.1-dev.10

    2021-01-29 dev pub.dev
    • Even and Odd number int check created;
    • matrix transpose bug fixed;
    • classes documentations improved;

20. 0.0.1-dev.9

    2020-12-29 dev pub.dev
    • PolyFit issue #16;
    • Dart lint warning fixed;

21. 0.0.1-dev.8

    2020-12-02 dev pub.dev
    • Logo url update.

22. 0.0.1-dev.7

    2020-12-01 dev pub.dev
    • License changed and documentation updates.

23. 0.0.1-dev.6

    2019-09-10 dev pub.dev
    • bug correction issue: https://github.com/scidart/scidart/issues/7 .

24. 0.0.1-dev.5

    2019-08-15 dev pub.dev
    • pubspec homepage updated.

25. 0.0.1-dev.4

    2019-08-15 dev pub.dev
    • README examples updated.

26. 0.0.1-dev.3

    2019-08-15 dev pub.dev
    • IO migrated to scidart_io.

27. 0.0.1-dev.2

    2019-08-12 dev pub.dev
    • Readme file updated.

28. 0.0.1-dev.1

    2019-08-12 dev pub.dev
    • NumDart, SciDart and IO fundamentals implemented and documented.