XCal Scientific Calculator

XCal is a professional and easy-to-use scientific calculator. Be eXcellent with it!

Features:
● Calculate with scientific / trigonometric / hyperbolic functions.
● Customize rounding scale and scientific notation context.
● Customize random number context.
● Customize constant lists.
● Provide tips of the domain of function on error.
● Record step-by-step calculation history.
● Four themes and three font styles are available for current version.