Linear Algebra »

PositiveSemidefiniteMatrixQ — new and improved matrix predicates

NormalMatrixQ  ▪  OrthogonalMatrixQ  ▪  SquareMatrixQ  ▪  ...

New Special Functions

LogisticSigmoid — the logistic function

CantorStaircase — the Cantor ternary function

MinkowskiQuestionMark  ▪  ScorerHi  ▪  ScorerGi  ▪  FresnelF  ▪  FresnelG  ▪  RiemannXi  ▪  DirichletBeta  ▪  DirichletEta  ▪  DirichletLambda  ▪  Fibonorial  ▪  AlternatingFactorial  ▪  FareySequence

Vector Analysis

ArcLength — length

ArcCurvature — curvature

FrenetSerretSystem — generalized curvatures and associated basis

Enhanced Calculus

DSolveValue, RSolveValue — new functions that can directly return functions of solutions

DSolve — now solves delay differential and hybrid differential equations

Sum — new algorithms for functional telescoping, multiple sums, and special functions

Product — new algorithms for functional telescoping

DifferenceDelta — new results for differences of special functions

DiscreteRatio — new results for ratios of special functions

Probability & Statistics

AutocorrelationTest — test for autocorrelation in data

Time Series Processes »

TimeSeriesModelFit — automatic fitting, diagnostics, and forecasting for time series

ARCHProcess, GARCHProcess — new classes of time series processes

ARProcess, ARMAProcess — full support for vector processes

MAProcess  ▪  SARMAProcess  ▪  FARIMAProcess

Markov Processes

HiddenMarkovProcess — hidden Markov process with discrete or continuous emissions

FindHiddenMarkovStates — hidden state decoding (Viterbi decoding etc.)

Parametric Processes »

TransformedProcess — transformations of random processes

WhiteNoiseProcess — new and improved capabilities for parametric processes

PoissonProcess  ▪  WienerProcess  ▪  GeometricBrownianMotionProcess  ▪  ...