CameraMath vs PARI/GP

CameraMath solves math problems from photos, screenshots, handwritten questions or typed text and gives step-by-step explanations. Its online solver covers pre-algebra, algebra, pre-calculus, inequalities, calculus, trigonometry, geometry, statistics, probability and matrices. The free online plan is listed at free and supports photo, screenshot, handwriting, text and calculator inputs. Most site features are available without registering for an account. The service is available on web, Android and iOS; for mobile use, the site directs users to the UpStudy app, which also offers additional study resources. The UpStudy API can return single answers, brief answers or detailed step-by-step solutions, and its documentation describes a limited-time free trial without stating its duration. CameraMath presents the solver for students and professionals doing homework, checking answers or preparing for exams. Its headquarters are in Singapore, and support is available by email. The privacy policy says it may collect entered questions, uploaded images, profile details, usage behavior, crash logs, device information and IP addresses.

PARI/GP is a free, open-source computer algebra system designed for fast number-theory computations. Its functions cover factorization, algebraic number theory, elliptic curves, modular forms, L-functions, matrices, polynomials, power series, algebraic numbers, and transcendental functions. PARI is available as a C library; gp is an interactive shell, and GP is its scripting language. The gp2c compiler translates a subset of GP scripts to C and can make compiled scripts three or four times faster. The official site offers a browser-based GP interface for expressions, variables, and function definitions, though its stated speed is approximately 15% of native speed. Xeus-GP is a Xeus-based Jupyter kernel. Optional packages are distributed separately because they use substantial disk space and are expected to be unnecessary for most users. The project provides guides, reference manuals, tutorials, quick reference cards, and downloadable manuals. The project directs users to a mailing list for help and a bug tracker for reports and feature requests. It is licensed under GNU GPL version 2 or later.