Scientific Calculator Simulator

About This Tool

This online calculator simulator replicates the core functions of the Casio fx-991EX scientific calculator, providing a hands-on experience without physical hardware. It supports basic arithmetic, scientific functions like trigonometry, logarithms, powers, roots, as well as statistical calculations, making it perfect for students preparing for exams or professionals conducting technical analyses. The user interface is designed to resemble the physical calculator with a digital display and keypad, enabling intuitive learning and practice. Users can input expressions via a virtual keypad or keyboard, get instant results, and review calculation history. The tool is fully responsive, styled with a modern flat design, high contrast, and accessible keyboard navigation. Additional features include theme toggling for dark mode, result exporting, and resetting the calculator. It is intended for educational institutions, exam preparation, and STEM careers, offering a reliable simulation environment that closely mimics real calculator functionalities. This solution is suitable for online courses, remote learning, and self-study environments, providing everyone an accessible way to master complex calculations without the need for physical devices.

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