Matrices and vectors

Build arrays with functions, then use the Math tab Matrix / Vector group or type the same names. Operators ▾ → Matrix has the constructors (matrix, vec, eye, zeros, linspace, ranges).

Create

Click a math region, then type or insert:

A := matrix([1, 2], [3, 4]) =
v := vec(1, 0, 0) =
I := eye(3) =
z := zeros(2, 2) =
x := linspace(0, 10, 11) =
r := range(1, 5) =

Each argument to matrix is a row: [1, 2] then [3, 4] is a 2-by-2. Scalars become a column (matrix(1, 2, 3, 4) is 4-by-1 — use vec for that). range(start, end) is inclusive. rstep(start, next, end) (ribbon: 1,3..n) steps by next − start. Units can ride on entries (matrix([1 m, 2 m], [3 m, 4 m])).

Linear algebra

The Matrix / Vector group inserts:

• transpose(A) — ribbon Mᵀ
• det(A), inv(A) (M⁻¹), trace(A), rank(A)
• norm(v) (‖v‖), dot(a, b) (a·b), cross(a, b) (a×b)
• eigvals(A), eigvecs(A)
• solve(A, b) for a linear system — not the Given-block solve

Export

Right-click a math region whose result is a matrix and choose Export matrix to CSV…. The browser downloads a comma file you can open in a spreadsheet. This is the result, not the expression.

Browse the rest of the matrix helpers in the function catalog. For a nonlinear system, open a Given/solve block instead of solve(A, b).