Solve formulas. Follow every step.

It supports addition, subtraction, multiplication, division, powers, percentages, factorials, parentheses, roots, logarithms, and trigonometric and hyperbolic functions. Standard precedence applies: powers before multiplication, with parentheses available to set an explicit order.

Use either a period or comma, such as 1.25 or 1,25. Multiplication may omit the symbol between a number and a constant or parentheses, for example 2π or 3(x+1).

Select the angle mode above the calculator keyboard. It applies to sin, cos, tan, and inverse trigonometric functions. The constants π and e are available in expressions and on the virtual keyboard.

Separate arguments with a semicolon, for example root(27;3) or log(8;2). In root, enter the value first and the root degree second; the second log argument is the base.

The list shows evaluated subexpressions in execution order: nested groups and functions first, followed by lower-precedence operations. It helps review the calculation but is not a formal proof of a mathematical theorem.

When a result comes from rational inputs and operations that can be represented exactly as a fraction, the calculator reduces and displays the fraction beside its decimal value. Trigonometric, logarithmic, and other irrational results are shown as decimal approximations.

After a successful numerical calculation, use ans in the next expression. For example, calculate 5*5, then enter ans+3. The previous answer is not saved after a page reload.

The numerical mode evaluates numbers and constants only. Open Symbolic Algebra to work with x, y, and other Latin-letter variables.

You can simplify an expression, expand parentheses, or factor an expression. A local computer-algebra library produces the result; expansion is capped when it could create an excessively large number of terms.

Paste a set of finite numbers and choose the separator. The calculator reports the count, sum, mean, median, variance, standard deviation, minimum, and maximum.

Population variance divides the sum of squared deviations by the total count N. Sample variance divides by N−1 and requires at least two values.

The default accepts spaces, semicolons, and line breaks; comma can also be selected. When comma is the separator, enter decimal fractions with a period so values remain unambiguous.

Categories include length, area, volume, mass, time, speed, temperature, pressure, energy, power, data size, and angle. Choose the quantity and source and target units, then enter a value.

Celsius, Fahrenheit, and Kelvin conversions use their scale formulas, including the offset between zero points. Temperature therefore uses an affine conversion rather than a simple multiplication factor.

No. Evaluation, symbolic transformations, statistics, and unit conversion run in the browser. Usage tracking sends only the operation type and a technical visitor identifier, not expressions, values, or results.