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- ; A transpose of a nonnumeric matrix
- [[a, b], [c, d]] `
- ; A determinant of a nonnumeric matrix
- DET [[a, b], [c, d]]
- ; Matrix addition
- [[a, b], [c, d]] + [[1, 0], [c, - d]]
- ; Use a dot for matrix multiplication
- [[a, b], [c, d]] . [[x], [y]]
- ; Matrix inverse
- [[a, b], [c, d]]^(-1)
- ; A matrix dotted with its inverse is an identity matrix
- [[a, b], [c, d]] . [[a, b], [c, d]]^(-1)
- ; Using an inverse matrix to solve the system a x + b y = e, c x + d y = f
- [[a, b], [c, d]]^(-1) . [[e], [f]]
- ; Try factoring this determinant
- DET [[1, a, a, a], [1, x, a, a], [1, a, x, a], [1, a, a, x]]
- ; Try factoring this determinant
- DET [[x, 1, 1, 1, 1], [1, x, 1, 1, 1], [1, 1, x, 1, 1], [1, 1, 1, x, 1], [1, 1, 1, 1, x]]
- ; Try factoring this determinant
- DET [[0, 1, 1, 1, 1], [1, 0, b, b, b], [1, a, 0, b, b], [1, a, a, 0, b], [1, a, a, a, 0]]
- ; Try factoring this determinant
- DET [[1, -1, 0, 0, 0], [x, h, -1, 0, 0], [x^2, h*x, h, -1, 0], [x^3, h * x^2, h*x, h, -1], [x^4, h * x^3, h * x^2, h*x, h]]
- ; Try factoring this determinant
- DET [[a, 1, 0, 0, 0, 0], [5, a, 2, 0, 0, 0], [0, 4, a, 3, 0, 0], [0, 0, 3, a, 4, 0], [0, 0, 0, 2, a, 5], [0, 0, 0, 0, 1, a]]
- ; Try factoring this determinant
- DET [[a, 0, 0, x, 0, 0], [0, b, 0, 0, y, 0], [0, 0, c, 0, 0, z], [u, 0, 0, d, 0, 0], [0, v, 0, 0, e, 0], [0, 0, w, 0, 0, f]]
- ;
- DET [[x^2 + 1, x, 0, 0, 0], [x, x^2 + 1, x, 0, 0], [0, x, x^2 + 1, x, 0], [0, 0, x, x^2 + 1, x], [0, 0, 0, x, x^2 + 1]]