Widemath Scientific Calculator
In-depth reviewWidemath is a free online scientific calculator, styled after the Casio fx-991ES PLUS. It offers 8 calculation modes, including calculus, matrices, statistics, and complex numbers. Results remain exact, suitable for students and professionals needing advanced mathematical functions.
Not sure how to add Widemath Scientific Calculator to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
Own Widemath Scientific Calculator? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.
How to install Widemath Scientific Calculator as a PWA
Why we recommend Widemath Scientific Calculator
Widemath stands out as a comprehensive scientific calculator offering a wide range of advanced functions typically found in physical scientific calculators. It supports 8 distinct calculation modes like COMP, STAT, BASE-N, MATRIX, VECTOR, TABLE, EQN, and CMPLX, which goes beyond basic trigonometric and logarithmic functions. Specific capabilities include numerical definite integration, differentiation, summation, matrix calculations up to 3x3, and solving linear, quadratic, and cubic equations. Its ability to handle complex numbers in both rectangular and polar forms, along with statistical regression and base-N arithmetic, makes it a powerful tool for various scientific and engineering disciplines. The 'Natural textbook display' and 'Full keyboard input support' enhance usability.
Best use cases
Best for: Students and educators needing a feature-rich scientific calculator for subjects like calculus, linear algebra, statistics, and complex analysis. It is ideal for solving multi-variable simultaneous equations or performing matrix operations. Also beneficial for anyone requiring base-N conversions or detailed statistical regression analysis without purchasing a dedicated physical calculator. Its Casio fx-991ES PLUS style interface provides a familiar experience for many users.
Honest limitations
This application does not provide offline support, despite a claim in the FAQ about PWA installation for offline use. It is explicitly designed for a Casio-style workflow, which might not suit users accustomed to more visual or graphing-centric calculators like Desmos. While it offers advanced numerical calculations, it is not a symbolic calculator and will not provide algebraic simplifications or variable manipulation. It is not suitable for advanced data visualization or interactive graphing beyond its table mode.
Are you the maker of Widemath Scientific Calculator? Claim this listing →
Similar to Widemath Scientific Calculator
Calculate in a notebook and share — from everyday math to engineering. Use variables, functions, and units and see results immediately. Add comments, copy calculations to apps like Word or Excel, or share them through an editable link. Calculate thermodynamic fluid properties with the integrated CoolProp library.
Learn math, science, and CS through interactive problem-solving. Beautiful visualizations for concepts from probability to neural networks. A thinking-first learning platform. Courses build from one idea to the next rather than from lectures, so progress depends on solving rather than watching.
Interactive mathematics for all levels — geometry, algebra, calculus, statistics. Create dynamic constructions, share interactive visualizations. Free for students and teachers forever. Constructions stay dynamic, so dragging a point updates every dependent value and shows the relationship rather than one case.
Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…
Beautiful graphing calculator in the browser. Plot any function, adjust parameters with sliders, explore calculus visually. Used in classrooms worldwide, completely free. It keeps working without a connection once installed, which is why classrooms rely on it on school tablets.
Free world-class education in Math, Science, and Humanities. Thousands of lessons, exercises, and videos. A genuine replacement for expensive tutoring, installable as a PWA. Exercises adapt to what you get wrong, so the next question targets the gap rather than repeating the lesson.