blkdiag()

Core Math

blkdiag() is a MATLAB®-compatible core math function for create a block diagonal matrix from the input matrices. each input becomes a diagonal block in the output. Run it online in your browser with SimLab — free, no install, no license required.

Create a block diagonal matrix from the input matrices. Each input becomes a diagonal block in the output.

▶ Try blkdiag() in SimLab — Free

Syntax

blkdiag(A, B, ...)

Examples — run blkdiag() in your browser

blkdiag([1, 2; 3, 4], [5, 6; 7, 8])

▶ Run

blkdiag(eye(2), [9])

▶ Run

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Frequently Asked Questions about blkdiag()

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

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

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

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

What does blkdiag() do?

Create a block diagonal matrix from the input matrices. Each input becomes a diagonal block in the output. It is a MATLAB®-compatible core math function available in SimLab with the same calling syntax as MATLAB® — typically: blkdiag(A, B, ...).

Can I run blkdiag() in my browser?

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

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