Math

Eigenvalue Calculator (2×2)

Eigenvalues of a 2×2 real matrix.

λ₁

λ₂

This free Eigenvalue Calculator (2×2) covers Eigenvalues of a 2×2 real matrix.

Roots of λ² − (tr A)λ + det A = 0. Other math tools are linked below.

Eigenvalue Calculator (2×2) — how it works

Eigenvalues of a 2×2 real matrix. Typical inputs are a, b, c and d. How it works beside the form states the identity the Eigenvalue Calculator (2×2) applies.

FAQ

How do I use the Eigenvalue Calculator (2×2)?

Open the Eigenvalue Calculator (2×2), fill a, b, c and d, and read the result. Roots of λ² − (tr A)λ + det A = 0.

What formula does the Eigenvalue Calculator (2×2) use?

The Eigenvalue Calculator (2×2) uses the identity in How it works. In words: Roots of λ² − (tr A)λ + det A = 0.

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