Math
Eigenvalue Calculator (2×2)
Eigenvalues of a 2×2 real matrix.
Free to use — no sign-up or login.
λ₁
λ₂
Amortization schedule
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This free Eigenvalue Calculator (2×2) covers Eigenvalues of a 2×2 real matrix.
Roots of λ² − (tr A)λ + det A = 0. Related math tools sit beside How it works, with no account required.
Using the Eigenvalue Calculator (2×2)
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.