Calculators
Select a calculator to get started
Engineering
2Geometry
4Pythagorean Theorem
Find the missing side of a right triangle and all trigonometric ratios
trigonometryRegular Polygon Area
Calculate the area of any regular polygon (3 to 10 sides)
plane-geometryDistance Between Points
Calculate the distance between two points in a Cartesian plane
analytic-geometrySlope of a Line
Calculate the slope between two points and the line equation
analytic-geometryAlgebra & Calculus
9Linear Equation
Solve linear equations of the form ax + b = 0
equationsQuadratic Equation
Solve quadratic equations using the quadratic formula with discriminant analysis
equationsCalculus
Compute derivatives, integrals (definite and indefinite), and limits
calculusMatrix Calculator
Perform matrix operations: add, subtract, multiply, determinant, inverse, transpose, rank
linear-algebraComplex Number Calculator
Perform operations on complex numbers: arithmetic, modulus, argument, conjugate, powers, and nth roots
complex-numbersSequence Calculator
Compute terms, partial sums, and convergence of explicit or recursive sequences
sequencesSystems of Equations
Solve 2x2 or 3x3 systems of linear equations using Gaussian elimination and Cramer's rule
systemsEquation Solver (Brent)
Find all real roots of f(x) = 0 using Brent's method with automatic bracket detection
equationsTrig Simplifier
Simplify trigonometric expressions using fundamental identities
trigonometryTools
1Numerical Methods
5Runge-Kutta (RK4)
Solve ordinary differential equations numerically using the classical 4th-order Runge-Kutta method
ode-solversNewton's Interpolation
Interpolate using Newton's divided differences method
interpolationNumerical Integration
Approximate definite integrals using the Trapezoidal Rule, Simpson's 1/3, or Simpson's 3/8 Rule
integrationNewton-Raphson
Find roots of equations using the Newton-Raphson iterative method
root-findingLinear Regression
Fit a least-squares line to data points with R² coefficient
regressionStatistics
4Descriptive Statistics
Calculate mean, median, mode, standard deviation, and more from a data set
descriptiveProbability Distribution
Calculate PDF, CDF, and inverse CDF for 10 probability distributions
distributionsAdvanced Regression
Fit data to 11 regression models (linear, polynomial, exponential, logarithmic, power, trigonometric, logistic, median) with R² and prediction
regressionStatistical Inference
Perform hypothesis tests: z-test, t-test, pooled t-test, chi-squared goodness-of-fit, and one-way ANOVA
inference