v1.4.0

Added

• SciPy-inspired Scientific Computing Modules (all Swift-backed with Accelerate):

  • luaswift.distributions - Probability distributions (norm, t, chi2, f, gamma, beta, uniform) with pdf, cdf, ppf, sf, isf, rvs methods
  • luaswift.integrate - Numerical integration (quad, dblquad, tplquad, nquad, odeint, simps, trapz, cumtrapz)
  • luaswift.optimize - Optimization (minimize, minimize_scalar, root, root_scalar, curve_fit, least_squares)
  • luaswift.interpolate - Interpolation (interp1d, CubicSpline, PCHIP, Akima, make_interp_spline)
  • luaswift.cluster - Clustering algorithms (kmeans, hierarchical, DBSCAN, silhouette_score)
  • luaswift.spatial - Spatial algorithms (KDTree, Voronoi, Delaunay, ConvexHull, distance functions)
  • luaswift.special - Special functions (erf, erfc, gamma, lgamma, digamma, beta, betainc, bessel j0/j1/jn/y0/y1/yn, ellipk, ellipe, zeta, lambertw)
  • luaswift.regress - Regression models (OLS, WLS, GLS, GLM with multiple families, ARIMA)
  • luaswift.series - Series evaluation (Taylor polynomials, series summation/product, convergence detection, lazy iterators)

• Visualization Modules:

  • luaswift.plot - Matplotlib/seaborn-compatible plotting with retained vector graphics (figure, subplot, plot, scatter, bar, hist, heatmap, pie, boxplot, violin, contour, imshow)
  • luaswift.svg - Swift-backed SVG document generation (complete rewrite from Lua)

• Math/Expression Modules:

  • luaswift.mathexpr - Mathematical expression parsing with LaTeX support, step-by-step evaluation, equation solving
  • luaswift.mathsci - Unified scientific computing namespace (math.stats, math.linalg, math.special, etc.)
  • luaswift.sliderule - Slide rule simulation for analog computation

• Debug Module (luaswift.debug, DEBUG builds only):

  • Structured logging with levels (debug, info, warn, error)
  • Console utilities (print, inspect, trace, assert)
  • Performance timing (time, timeEnd)

• MathX Extensions:

  • Additional constants: tau, phi (golden ratio), euler_gamma
  • Probability functions: ncr, npr, factorial

• LinAlg Extensions:

  • Singular Value Decomposition (SVD)
  • QR decomposition
  • Eigenvalue decomposition
  • Least squares solver (lstsq)
  • Moore-Penrose pseudo-inverse (pinv)
  • Matrix condition number (cond)

• Memory Limit Enforcement:

  • LuaEngine tracks memory allocations from Swift modules
  • trackAllocation(bytes:) throws when limit exceeded
  • ArrayModule and LinAlgModule respect configured limits
  • Configurable via LuaEngineConfiguration.memoryLimit

• Geometry Extensions:

  • Additional 2D/3D utilities
  • Quaternion improvements

Changed

• All modules now use Swift-backed implementations for performance (previously some were pure Lua)
• Test suite expanded to 2747 tests (2413 XCTest + 334 Swift Testing)
• MathExpr module rewritten in Swift with LaTeX preprocessing