Math Otter
Matrix Calculator
Add, multiply, invert, and compute determinants. Everything runs directly in the browser and updates instantly.
Matrix B
Blue = directly calculable with the current input. Non-blue = still clickable and shows the reason as an error when needed.
Result
ReadyChoose an operation.
Vector view
Engine is loading...
Vectors of any length are displayed. Higher dimensions are projected into the view.
Mouse: drag/zoom
No vectors yet. Use 1xn or nx1 matrices of any length.
FAQ: Matrix Calculator
Fast answers about determinants, inverses, and vector operations.
When is a matrix invertible?
A matrix is invertible when its determinant is not 0. The tool shows an error when inversion is impossible.
Which vector formats are supported?
Use 1xn or nx1 matrices for vector operations. Dot products require equal length; cross product requires 3D vectors.
What should I learn next?
Continue with the learning path
or test function behavior in the plotter.