Mathematics
Calculators for mathematical problems.
Simpson's Rule Integration Calculator
Approximate area under a curve using Simpson's rule and compare it with a trapezoid estimate from the same three points.
Newton Iteration Step Calculator
Compute the next Newton-Raphson estimate, step size, residual ratio, and tolerance gap from a current point.
Two-State Markov Chain Calculator
Project a two-state Markov chain and compare the result with the steady-state distribution after a chosen number of steps.
Bayesian A/B Test Calculator
Compare two conversion rates with beta priors, posterior means, lift, and an approximate z-score for the difference.
Cubic Root Shape Calculator
Analyze a cubic polynomial using discriminant, derivative discriminant, inflection point, and value at the inflection point.
Exponential Growth Fit Calculator
Fit an exponential rate from start and end values, then forecast a later value and estimate doubling time.
3x3 Matrix Determinant Calculator
Calculate determinant, trace, row norm, and invertibility indicator for a 3x3 matrix.
Finite Difference Derivative Calculator
Estimate first and second derivatives from three sampled points and produce a local linear estimate.
Sample Size for Proportion Calculator
Estimate required sample size for a population proportion with confidence z-score, margin of error, expected proportion, and finite population correction.
Complex Polar Power Calculator
Convert a complex number to polar form and apply De Moivre's theorem for an integer-like power.
2x2 Eigenvalue Calculator
2x2 Eigenvalue Calculator analyzes a 2x2 matrix with determinant, trace, eigenvalue, and conditioning metrics.
2x2 Matrix Condition Calculator
2x2 Matrix Condition Calculator analyzes a 2x2 matrix with determinant, trace, eigenvalue, and conditioning metrics.
Linear Transform Analyzer
Linear Transform Analyzer analyzes a 2x2 matrix with determinant, trace, eigenvalue, and conditioning metrics.
Quadratic Form Classifier
Quadratic Form Classifier analyzes a 2x2 matrix with determinant, trace, eigenvalue, and conditioning metrics.
Normal Distribution Calculator
Normal Distribution Calculator combines probability, sample size, observed events, and finite-population adjustment.
Poisson Distribution Calculator
Poisson Distribution Calculator combines probability, sample size, observed events, and finite-population adjustment.
Hypergeometric Distribution Calculator
Hypergeometric Distribution Calculator combines probability, sample size, observed events, and finite-population adjustment.
Bayesian Update Calculator
Bayesian Update Calculator combines probability, sample size, observed events, and finite-population adjustment.
Newton Method Calculator
Newton Method Calculator uses iterative numerical reasoning to estimate a root and residual diagnostics.
Polynomial Root Bound Calculator
Polynomial Root Bound Calculator uses iterative numerical reasoning to estimate a root and residual diagnostics.
Golden Section Search Calculator
Golden Section Search Calculator uses iterative numerical reasoning to estimate a root and residual diagnostics.
Cubic Discriminant Calculator
Cubic Discriminant Calculator uses iterative numerical reasoning to estimate a root and residual diagnostics.
Triangle Incenter Calculator
Triangle Incenter Calculator combines circular, triangular, and radius-based geometry into one compact result set.
Bezier Curve Point Calculator
Bezier Curve Point Calculator combines circular, triangular, and radius-based geometry into one compact result set.
Spherical Distance Calculator
Spherical Distance Calculator combines circular, triangular, and radius-based geometry into one compact result set.
Sector + Triangle Area Calculator
Sector + Triangle Area Calculator combines circular, triangular, and radius-based geometry into one compact result set.
Least Squares Line Calculator
Least Squares Line Calculator estimates standardized distance, uncertainty, and confidence range from sample assumptions.
Chi-Square Test Calculator
Chi-Square Test Calculator estimates standardized distance, uncertainty, and confidence range from sample assumptions.
Confidence Band Calculator
Confidence Band Calculator estimates standardized distance, uncertainty, and confidence range from sample assumptions.
Monte Carlo Error Calculator
Monte Carlo Error Calculator estimates standardized distance, uncertainty, and confidence range from sample assumptions.
Quadratic Features Calculator
Find vertex, discriminant, and real-root estimates for a quadratic expression.
Sequence Sum Calculator
Calculate arithmetic and geometric nth terms and sums from shared starting values.
Binomial Probability Calculator
Calculate exact and cumulative binomial probabilities for repeated independent trials.
Confidence Interval Calculator
Build a normal-approximation confidence interval from mean, standard deviation, sample size, and z value.
Two-Point Linear Predictor
Create a line from two points and predict y for a chosen x value.
Ellipse Calculator
Calculate ellipse area, approximate perimeter, and eccentricity from semi-major and semi-minor axes.
Complex Number Operations Calculator
Add and multiply two complex numbers, then calculate product magnitude.
2x2 Matrix Inverse Calculator
Calculate determinant and inverse entries for a 2x2 matrix.
Logistic Growth Calculator
Model bounded growth with carrying capacity, initial value, growth rate, and time.
Bayes' Theorem Calculator
Update a prior probability using sensitivity and false-positive rate.
Fraction Simplifier
Reduce a fraction to lowest terms and show its decimal value.
Fraction to Decimal Calculator
Convert a fraction to decimal and percentage form.
Decimal to Percent Calculator
Convert decimal values into percentages and basis points.
Scientific Notation Calculator
Convert a number into scientific notation components.
Linear Interpolation Calculator
Estimate a value between two known points using linear interpolation.
Exponent Calculator
Raise a base number to a power and view the reciprocal power.
Square Root Calculator
Calculate square root, cube root, and squared value.
Rectangle Area Calculator
Calculate rectangle area, perimeter, and diagonal from length and width.
Triangle Area Calculator
Calculate triangle area from base and height.
Cylinder Volume Calculator
Calculate cylinder volume and surface area from radius and height.
Ratio Simplifier
Simplify two whole numbers into their lowest ratio and decimal equivalent.
Slope and Intercept Calculator
Find rise, run, slope, y-intercept, and line angle from two points.
Distance Between Points Calculator
Calculate the straight-line distance and coordinate differences between two 2D points.
Midpoint Calculator
Find the midpoint and coordinate changes between two points in a plane.
Circle Calculator
Calculate diameter, circumference, and area from a circle radius.
Pythagorean Theorem Calculator
Calculate the hypotenuse, area, and perimeter of a right triangle from its legs.
Logarithm Calculator
Calculate logarithms in any positive base plus natural and common logarithms.
Factorial Calculator
Calculate n factorial and see how many ordered arrangements exist for n items.
Permutation and Combination Calculator
Calculate permutations, combinations, and arrangements with repetition for n and r.
GCD and LCM Calculator
Find the greatest common divisor and least common multiple of two whole numbers.
Mean, Median, Mode
Calculate the mean, median, mode, and other statistical measures from a dataset.
Percentage Calculator
Pick the question you need, type two numbers, and get a clear percentage, increase, decrease, or change card.
Triangle Side, Angle & Area Calculator
Solve every side, angle, area, and radius of a general triangle by entering the three measurements you already know.
Standard Deviation Calculator
Calculate mean, standard deviation, and variance from a set of numbers.
Volume Calculator
Calculate the volume of common 3D shapes easily.
Quadratic Equation Solver
Solve quadratic equations ax² + bx + c = 0 and get roots, discriminant, and vertex coordinates.
Z-Score and P-Value Calculator
Calculate z-scores, p-values, and perform statistical hypothesis testing with the standard normal distribution.
Matrix Calculator
Perform matrix operations: addition, subtraction, multiplication, determinant, rank, inverse, eigenvalues, and eigenvectors.
Vector Calculator – Dot, Cross & Projections
Calculate vector magnitudes, dot product, cross product, angle, and projections in 2D or 3D space.
System of Linear Equations Solver
Solve 2x2 and 3x3 systems of linear equations using Gaussian elimination. Get exact solutions, detect inconsistencies, and find infinite solution sets.