Solve trig, logarithmic, root, and power expressions with degree/radian control and instant history.
Enter a full expression in one line instead of solving each step separately. The calculator supports trigonometric functions, logarithms, factorials, powers, and parentheses, making it useful for school math, engineering prep, and quick technical checks.
Run a few expressions to build history.
Core identities supported include Pythagorean trig identity sin²(x) + cos²(x) = 1, change-of-base via logarithms, and factorial expansion for permutation and combinatorics checks.
Use DEG mode for school-style angles (30, 45, 60) and RAD mode when working with calculus or programming formulas.
Why are trig answers different from my textbook? Check the angle mode. Most textbook examples use degrees.
How do I reuse previous outputs? Use ANS in the keypad or click an item from calculation history.