ITDS Eigensystems

IMSL-compatible eigensystem analysis in Python — eigenvalues, eigenvectors, matrix decompositions, and spectral utilities backed by NumPy and SciPy.

Quick Start API Reference Examples

30 Functions

3 Example Scripts

200+ Tests

NumPy / SciPy Backend

🔢 Eigenvalues

Real and complex general matrices, symmetric, Hermitian, and generalized eigenvalue problems (IMSL EVLRG, EVLSF, EVLCG, GVLRG…)

🔧 Matrix Decompositions

SVD, QR, Cholesky, LU, and Schur decompositions for any real or complex matrix.

📐 Matrix Analysis

Norms, condition number, rank, determinant, trace, and utility routines for symmetry and positive-definiteness checks.

Open Source · NumPy/SciPy Backend · IMSL-Compatible