dlqr()

Control Systems

dlqr() is a MATLAB®-compatible control systems function for discrete-time linear quadratic regulator. solves the discrete algebraic riccati equation via fixed-point iteration. input (a, b) must have all eigenvalues strictly inside the unit circle. Run it online in your browser with SimLab — free, no install, no license required.

Discrete-time Linear Quadratic Regulator. Solves the discrete algebraic Riccati equation via fixed-point iteration. Input (A, B) must have all eigenvalues strictly inside the unit circle.

▶ Try dlqr() in SimLab — Free

Syntax

[K, S, e] = dlqr(A, B, Q, R)

Examples — run dlqr() in your browser

[K, S, e] = dlqr([[0.9, 0.1], [0, 0.95]], [[0], [1]], eye(2), 1)

▶ Run

More Control Systems Functions

Browse other free, MATLAB®-compatible control systems functions in SimLab:

tf()ss()bode()rlocus()step()lqr()

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Frequently Asked Questions about dlqr()

Is the dlqr() function free to use in SimLab?

Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run dlqr() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.

Do I need to install MATLAB to use dlqr()?

No. SimLab runs entirely in your web browser with zero installation. The dlqr() function works without any MATLAB® license or software download.

What does dlqr() do?

Discrete-time Linear Quadratic Regulator. Solves the discrete algebraic Riccati equation via fixed-point iteration. Input (A, B) must have all eigenvalues strictly inside the unit circle. It is a MATLAB®-compatible control systems function available in SimLab with the same calling syntax as MATLAB® — typically: [K, S, e] = dlqr(A, B, Q, R).

Can I run dlqr() in my browser?

Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls dlqr(), and run it. Execution happens locally in your browser — no data leaves your machine.

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