Wolfram Alpha

Wolfram Alpha is a computation engine that 'understands' mathematics, science and engineering: rather than searching web pages like Google, it parses math inputs and directly computes answers. The tool solves algebraic equations, derivatives, integrals, plots graphs, solves linear systems and more scientific domains. The free plan provides a raw answer; Pro ($9.99/month) unlocks intermediate steps, extended computation (solves more complex problems without timeout) and advanced visualizations. Variants exist: Wolfram Alpha Notebook Edition (one-time payment) for a Mathematica-like environment, and specialized plans for students and educators.

Wolfram Alpha offers no French-language interface: the product remains English-only, though it accepts inputs in multiple languages. A publicly documented API enables developers to integrate computations into third-party applications or LMS. The tool existed well before ChatGPT and remains highly valued by scientists and engineers for the rigor of its computations (unlike generative AI that can 'hallucinate'). The main complaint is learning curve: input syntax isn't always intuitive, and users must learn proper formulations for complex questions. For most cases, natural syntax works well.