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LINEAR ALGEBRA & MATRICES
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Matrix Determinant

Calculate the determinant of 2×2 and 3×3 matrices instantly with step-by-step Sarrus and Laplace cofactor expansion, minor determinants, and singularity analysis.

✓Laplace & Sarrus Step Breakdown
✓2×2 & 3×3 Square Matrix Focus
✓100% Client-Side Privacy
Determinant det(A)1
Non-Singular (det ≠ 0)

Matrix Dimensions

a11
a12
a13
a21
a22
a23
a31
a32
a33
Exact Determinant
1Non-singular

Step-by-Step Expansion Breakdown

Matrix A (3×3):
| 1 2 3 |
| 0 1 4 |
| 5 6 0 |
Laplace Expansion along Row 1:
det(A) = a × M₁₁ - b × M₁₂ + c × M₁₃
M₁₁ = | e f | = (1 × 0) - (4 × 6) = -24
| h i |
M₁₂ = | d f | = (0 × 0) - (4 × 5) = -20
| g i |
M₁₃ = | d e | = (0 × 6) - (1 × 5) = -5
| g h |
det(A) = 1(-24) - 2(-20) + 3(-5) = -24 - -40 + -15 = 1
det(A) ≠ 0: Matrix is non-singular and invertible.

Matrix Operations Calculator - Free Client-Side Calculator

Perform matrix addition, subtraction, multiplication, transposition, determinant evaluation, and inverse calculation for 2x2 to 5x5 matrices.

Designed for students, researchers, and professionals, this utility performs Client-side calculations inside your browser with zero network calls or data tracking.

Core Tool Capabilities

  • Matrix Arithmetic: Perform matrix addition, subtraction, and scalar/matrix multiplication.
  • Determinant & Inverse: Calculate determinants, adjugates, and inverses for square matrices.
  • Transposition & Trace: Compute matrix transpose and diagonal trace sum.
  • Eigenvalue Estimates: Evaluates characteristic polynomials for 2x2 and 3x3 matrices.

Local Browser Privacy

Your files are processed locally on your device. Files are not uploaded, transmitted, or stored on remote servers.

Once the page has loaded, you can disconnect your network connection and continue using this tool offline.

Target Use Cases

  • • Academic & Educational Work
  • • Daily Utility

Technical Specifications & Platform Limits

Execution Environment
Client-side Browser Memory

Runs locally in modern web browsers

Calculation Engine
IEEE 754 / BigInt High Precision

Accurate mathematical evaluation

Privacy Guarantee
No Telemetry or Storage

Zero server-side logging or tracking

Step-by-Step Workflow

1

Enter Values

Provide numerical parameters into the active inputs.

2

Select Options

Choose units, formulas, or precision rules.

3

View Results

Instantly view exact calculated results, breakdowns, and step explanations.

Practical Real-World Use Cases

Academic & Educational Work

Verify mathematical homework, physics formulas, or geometry exercises.

Daily Utility

Compute everyday calculations quickly without ads or paywalls.

Frequently Asked Questions

When is a matrix invertible?
A square matrix is invertible if and only if its determinant is non-zero (det(A) ≠ 0).
What dimensions are supported?
Supports 2x2, 3x3, 4x4, and 5x5 floating-point and integer matrices.

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