Matrix Calculator
Perform matrix operations: addition, multiplication, determinants, and more.
About Matrix Calculator
Enter your matrices, choose an operation, and get results instantly. Matrix Calculator handles addition, subtraction, multiplication, transposition, and determinant calculations without making you wade through setup screens or ads. You type in the values, pick what you need, and the answer is right there — with the working shown so you can follow each step rather than just trust the output.
It's genuinely useful for linear algebra coursework, double-checking homework, or refreshing your memory on how row operations work. The step-by-step output is the detail that separates it from a bare-bones compute-and-display tool. If you also need descriptive stats from a data set, Statistics Calculator covers similar ground for mean, median, standard deviation, and more. Both live in the broader tools category if you want to browse further.
Works best on a desktop or laptop — larger matrices mean more input fields, and a physical keyboard makes entering rows of numbers far less tedious than tapping through a phone screen.
How to use
This tool performs mathematical operations on 3x3 matrices. Enter numbers into the grid cells to create matrices, then use operation buttons to calculate results. • Click in any cell of Matrix A or Matrix B and type numbers (decimals allowed) • Use "Clear A", "Clear B", or "Clear R" buttons to reset specific matrices • Click operation buttons to perform calculations: - A + B = R: adds matrices A and B - A * B = R: multiplies matrix A by matrix B - B * A = R: multiplies matrix B by matrix A (order matters) - adj(A) = R: finds adjugate of matrix A - inv(A) = R: calculates inverse of matrix A - inv(B) = R: calculates inverse of matrix B • Click "det(A)" or "det(B)" to calculate determinants • Use ReArrange buttons to copy values between matrices (R→A, A→B, etc.) • Results appear in the Resultant Matrix (R) section • Leave cells empty if your matrix is smaller than 3x3
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