Welcome to the Desmos Matrix Calculator. Watch the video for an introduction to the tool, and read on to learn more.
Create a Matrix
To create your first matrix, click New Matrix and then select Plus (+) or Minus (-) to add rows and columns. Then, type your values directly into the matrix.
You can then perform operations on your new matrix. Multiply by a scalar, square your matrix, find the inverse and transpose it.
The calculator will give you a warning when you try to invert a singular matrix.
Additional Features
You can use the Matrix Calculator to find the determinant of a square matrix.
You can also find the reduced row echelon format (rref) of a matrix. This can be helpful when solving systems of equations.
Multiple Matrices
You can create multiple matrices and perform operations with them.
The Desmos Matrix Calculator will give a warning if you try to perform an operation on matrices with incompatible dimensions.
You can solve a system of equations using the function rref or with an inverse matrix.
You can convert decimal results into fractions just like in the Scientific Calculator.
Learn More
Please write in with any questions or feedback to support@desmos.com.