Tip: You can also drag & drop a .txt/.csv file onto the textbox.
For addition/subtraction, A and B must be same size; for multiplication, inner dimensions must match.
Result
Matrix Calculator – Quick Cheat Sheet
Input format: one row per line; columns separated by spaces or commas. Non-numeric values are rejected.
Add/Subtract: A and B must have identical dimensions (m×n).
Multiply: If A is m×n and B is p×q, then n must equal p. The result is m×q.
Transpose: Swaps rows/columns. A(m×n) → Aᵀ(n×m).
Determinant: Defined for square matrices only. det(A)=0 implies A is singular (non-invertible).
Inverse: Defined for square, non-singular matrices. This tool uses Gaussian elimination; numerical rounding may occur.
Files: Use a local .txt/.csv, or drag & drop onto a box. Data stays in your browser; nothing is uploaded.
Tips & Edge Cases
Trim extra spaces; blank lines are ignored. Mixed comma/space separators are accepted.
For large matrices & inverses, floating-point rounding is expected. Results print with up to 10 decimal places, trimming noise.
If inverse fails (near-singular), try rationalizing inputs or check det(A) ≈ 0.
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