NIEP

Analyzing Spectrum...

Computing

Evaluating theoretical invariants and initializing alternating projections solver.

Realization Matrix A
Spectral Comparison Canvas
Target σ
Realized spec(A)
Unit Circle
Interactive complex plane: Drag to pan, scroll to zoom. Blue rings indicate target eigenvalues σ, filled dots represent realized eigenvalues of A, and dashed red lines indicate residual discrepancies.
🧐 Theoretical Invariant Analysis

Universal necessary conditions governing entrywise nonnegative and stochastic spectral realizations.

🔎 Numerical Verification & Invariants

Target vs. Candidate Eigenvalues

Index Target λ_i Actual μ_i Residual |λ - μ|

Structured Cone Properties

Property Measured Value Status