scientific-calculator

Free WordPress Plugin: Solve complex math equations easily with our free online Scientific Calculator. Features advanced mathematical functions, trigonometry, logarithms, and more. www.calculator.io/scientific-calculator/. Maintained by pub-calculator-io on GitHub, where it has earned 339 stars from the community.

It's actively developed around calculator, calculator-plugin, online-calculator, and is a solid reference for anyone building with these tools.