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Calculate sin, cos, tan and inverse trigonometric functions in degrees or radians with clear domain errors and steps.

Use DEG/RAD mode to calculate trigonometric expressions in degrees or radians with an online scientific calculator.

Calculate inverse trigonometric functions asin, acos, and atan in DEG or RAD mode with an online scientific calculator.

Convert degrees to radians, reduce the exact π fraction and see a decimal radian approximation with calculation steps.

Convert radians to degrees from decimal values or π expressions such as pi/4, with cancellation and conversion steps.

Calculate common logs, natural logs and logarithms with any valid base using the change-of-base formula and clear steps.

Calculate natural logarithms and expressions with ln, e, fractions, powers, square roots, and scientific notation.

Solve ax²+bx+c=0 with the discriminant and quadratic formula, including repeated, irrational and complex roots, vertex and axis details.

Add, subtract, multiply and divide complex numbers, then find real and imaginary parts, magnitude, conjugate and polar form.

Calculate and simplify fractions with step-by-step solutions, decimal conversions and mixed number support.

Calculate square roots, identify perfect squares, simplify radicals and see decimal approximations with clear steps.

Calculate powers with integer, negative and fractional exponents and see the exponent rules used in each result.

Calculate factorials such as 5!, combine them with fractions and powers, and evaluate expressions in an online scientific calculator.

Calculate absolute values and expressions with fractions, roots, powers, logs, and trigonometry using a readable online calculator.

Multiply any number by pi, keep the exact multiple of π and get a decimal approximation. Evaluate pi powers, fractions and trig expressions.

Convert numbers to and from scientific notation and calculate sums, differences, products and quotients with significant figures.

Use an engineering calculator for fractions, roots, powers, trigonometry, logs, constants, factorials, and readable formula input.

Learn core math concepts with worked examples, then check fractions, roots, exponents, trigonometry, logarithms, and more with focused calculators.

Use a free online scientific calculator with fractions, square roots, exponents, logarithms, trigonometry, pi and natural math notation.

Enter math in a 2D LaTeX-style field, calculate the result, and copy the expression as LaTeX for notes, homework, and documents.

Calculate math expressions with fractions, roots, powers, parentheses, logs, trigonometry, constants, and factorials in a 2D input field.

Enter a circle radius to calculate the exact area in terms of π and a decimal approximation, with the formula A = πr² shown step by step.

Use an online scientific calculator that saves calculation history locally and supports Ans, result copy, and LaTeX copy.