Environment
- interactive — type matrix expressions and see results
- development — full development environment for developing programs and commands
- automatically compiled code
General features and matrix operators
- support for real and complex values
- joining by rows or columns
- addition, subtraction, multiplication, scalar division
- elementwise arithmetic
- transposition and reshaping
- Kronecker and Hadamard products
- inner and outer products
Mathematical and matrix functions LAPACK numerical analysis routines
- symmetric, nonsymmetric, and generalized inverses
- Cholesky, LU, QR, and SVD solvers
- transcendental and trigonometric functions
- gamma and factorial functions
- density and distribution functions
- polynomial evaluation, arithmetic, and calculus
- Hilbert, Toeplitz, and Vandermonde matrices
- random-number generation
- fast Fourier analysis
- cubic splines
- means, sums, minimums, and maximums of matrices
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Decompositions
- eigenvalues and eigenvectors
- Cholesky
- LU and LUD
- QR
- singular value
- permutation matrices
Data accumulation
- cross products
- cross products of deviations from means
- weighted and GLS-type cross products
- support for quad-precision cross products
Stata interface
- convert Stata datasets to matrices and vice versa
- virtual matrix views onto dataset
- access and set estimation-class and other macros
- manipulate dataset value labels
Other features
- string scalars and matrices
- file I/O, including buffered I/O
- C-like syntax
- fast execution
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