Open Source Alternatives to WolframAlpha

Kalker is a powerful scientific calculator designed to support math-like syntax. It allows users to define their own variables and functions, and it includes features for differentiation, integration, and handling complex numbers. Kalker is available on multiple platforms including Linux, Windows, macOS, and Android.

• User-Defined Variables: Define variables with a simple syntax, making complex calculations more manageable.
• Custom Functions: Create custom functions to streamline repetitive calculations and enhance functionality.
• Differentiation and Integration: Perform advanced calculus operations like differentiation and integration directly within the calculator.
• Complex Numbers: Handle complex numbers seamlessly for advanced mathematical computations.
• Vectors and Matrices: Work with vectors and matrices, including operations like indexing and comprehensions.
• File Support: Automatically load files for more extensive calculations and data management.
• Special Symbols: Easily type special mathematical symbols by using the normal function or constant name and pressing tab.

Kalker is an ideal tool for anyone needing a robust scientific calculator that goes beyond basic arithmetic. Its support for advanced mathematical functions and user-defined variables and functions makes it a versatile and powerful tool for students, engineers, and scientists.