Matrix

The /matrix endpoint performs mathematical operations on matrices. It supports arithmetic, scalar multiplication, transposition, and linear algebra operations on up to 20×20 matrices.

posthttps://api.moxon.dev/v5/matrix

How it works?

Determinant is computed via Gaussian elimination with partial pivoting. Matrix inverse uses Gauss-Jordan elimination on an augmented matrix. All inputs are validated: values must be finite numbers, rows must have uniform length, and the matrix must not exceed 20×20.

Try itpost/v5/matrix

curl -X POST \  "https://api.moxon.dev/v5/matrix" \  -H "Content-Type: application/json" \  -d '{}'

Send the request to see the response here.

Parameters

The request body must be JSON:

operationstringrequired
The operation to perform (see available operations)
- add
- subtract
- multiply
- scalar
- transpose
- determinant
- inverse
- identity
matrixjsonrequired
The input matrix (2D array of numbers)
matrix2jsonconditional
Second matrix — required for add, subtract, multiply
scalarnumberconditional
Scalar value — required for scalar, used by identity

Available Operations

Operation	Description	Requires
`add`	Element-wise addition	`matrix2`
`subtract`	Element-wise subtraction	`matrix2`
`multiply`	Matrix multiplication	`matrix2`
`scalar`	Multiply all elements by a scalar	`scalar`
`transpose`	Transpose rows and columns	—
`determinant`	Compute the determinant (square matrices only)	—
`inverse`	Compute the inverse (square, non-singular matrices)	—
`identity`	Generate an identity matrix of size `scalar`×`scalar`	`scalar`

Response Fields

The response format depends on the operation:

Operation	`result` type
`add`, `subtract`, `multiply`, `scalar`, `transpose`, `inverse`, `identity`	`number[][]`
`determinant`	`number`

Code Examples

curl -X POST \  "https://api.moxon.dev/v5/matrix" \  -H "Content-Type: application/json" \  -d '{    "operation": "determinant",    "matrix": [      [        1,        2      ],      [        3,        4      ]    ]  }'

Error Handling

If parameters are missing or invalid, the API will return an error:

400Please provide a valid operationThe operation parameter is missing or invalid. Valid values: add, subtract, multiply, scalar, transpose, determinant, inverse, identity
400Matrix must be a non-empty 2D arrayThe matrix is missing or malformed
400All rows must have the same lengthThe matrix rows are not uniform
400Matrix values must be finite numbersThe matrix contains non-numeric values
400Matrix exceeds maximum size of 20×20The matrix is larger than 20×20
400Both matrices must have the same dimensionsDimension mismatch for add/subtract
400Matrix dimensions incompatible for multiplicationColumn count of A ≠ row count of B
400Matrix must be squareOperation requires a square matrix
400Matrix is singular and cannot be invertedThe matrix has no inverse

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Last updated on May 25, 2026