Welcome to XCODX Online Compiler
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GNU Octave gives you MATLAB's language without MATLAB's license fee. A free-software project since the early 1990s, Octave deliberately tracks MATLAB syntax — matrices as the core type, the same operators, largely compatible function names — so the numerical methods course that assumes MATLAB usually runs fine in Octave. Recent major releases (Octave 9 and 10, 2024-2025) continue improving compatibility and performance. Universities and self-learners lean on it heavily: linear algebra, signal processing, and control systems homework are its natural habitat, and Andrew Ng's original machine learning course famously used it. This page runs Octave scripts in a real streaming terminal where input() prompts wait for your typed values — no download, no license, no setup.
name = input("Enter your name: ", "s");
printf("Hello, %s!\n", name);
n = input("Size of magic square? ");
M = magic(n);
disp("Your magic square:")
disp(M)
printf("Every row, column, and diagonal sums to %d\n", sum(M(1, :)));
v = input("Enter a vector like [3 1 4 1 5]: ");
printf("Mean %.2f | Max %g | Sorted: ", mean(v), max(v));
disp(sort(v));Octave is the budget-savvy student's MATLAB: engineering programs assign matrix computations, ODE problems, least-squares fits, and control-theory exercises in MATLAB syntax, and Octave runs nearly all of it free. Use this page when the campus license server is down, when you're on a personal laptop without MATLAB, or when you just need to verify a matrix identity or test vectorized code quickly. It also suits ML fundamentals practice — implementing gradient descent or normal equations by hand in matrix notation remains one of the best ways to internalize the math.
Yes. input() prints its prompt and suspends the script until you type a value — a number, an expression, or with the "s" flag a raw string — into the live terminal. Output from disp and printf streams immediately, so multi-prompt scripts read exactly like an interactive Octave session.
Usually, yes — core language syntax, matrix operations, and most common functions are compatible by design. Differences appear at the edges: some toolbox functions (Simulink, certain signal-processing extras) don't exist, and Octave allows a few extensions MATLAB rejects. For typical coursework in linear algebra and numerical methods, compatibility is excellent.
Graphical plot windows can't render in this text terminal, and pkg install is not available. Compute-side work is fully supported, so a common pattern is generating and printing the numeric results here (or checking them against a hand calculation), then producing the actual figure in a local Octave or MATLAB install.
main.mtext/x-octaveinput()% GNU Octave (MATLAB-compatible)
printf("Hello from Octave!\n");
printf("Welcome to XCODX Compiler!\n");
% Matrix operations
A = [1 2 3; 4 5 6; 7 8 9];
printf("Matrix A:\n");
disp(A);
printf("Determinant: %f\n", det(A));
printf("Sum of all elements: %d\n", sum(A(:)));
% Vector math
x = linspace(0, pi, 5);
printf("sin values: ");
disp(sin(x));