Math

441 tools · page 3 of 8

2×2 Matrix Multiplication Calculator Multiply two 2×2 matrices.
Prime Factorization Calculator Factor any whole number into its prime factors using trial division. Get the compact exponent form (2³ × 3² × 5), the expanded product, and the count of distinct primes.
Polygon Circumradius Calculator Calculate the circumradius and inradius of a regular polygon from its number of sides and side length.
Rectangle Diagonal Calculator Computes the diagonal of a rectangle from its width and height using the Pythagorean theorem.
Automorphic Number Checker Check whether a number is automorphic — its square ends in the number itself (e.g. 25² = 625).
Icosahedron Calculator Calculate the volume and surface area of a regular icosahedron from its edge length.
Double Factorial Calculator Calculate the double factorial n!!, the product of integers from n down to 1 or 2 of the same parity.
Vector Components Calculator Resolves a vector into its x and y components from its magnitude and direction angle.
3D Vector Calculator Compute the magnitude, unit vector and direction of a three-dimensional vector from its x, y and z components.
Polygon Apothem Calculator Calculate the apothem and area of a regular polygon from its number of sides and side length.
Complex Number Polar Form Calculator Convert a complex number a + bi to polar form, giving the modulus (magnitude) and the argument (angle).
Modulo Calculator Compute the quotient and remainder of a division (a mod b).
Kite Area Calculator Calculate the area of a kite from the lengths of its two diagonals.
Cubic Equation Solver Solve any cubic equation ax³ + bx² + cx + d = 0 for all real and complex roots using Cardano's method, with the discriminant reported so you know how many real roots exist.
Exponential Decay Calculator Calculate the remaining amount after exponential decay from the initial amount, decay constant and time.
Cone Slant Height Calculator Calculates the slant height of a right circular cone from its base radius and vertical height.
Equivalent Ratio Calculator Find the equivalent ratio: given a ratio A:B and a new value for the first term, calculate the matching second term so the proportion is preserved. Handy for scaling recipes, maps and mixes.
Round to Place Calculator Round a number to a chosen number of decimal places (use negative places to round to tens, hundreds and beyond).
Cylinder Surface Area Calculator Calculate the total and lateral surface area of a cylinder from its radius and height.
Spherical Cap Volume Calculator Calculate the volume and curved surface area of a spherical cap from the sphere radius and cap height.
Gradians to Degrees Converter Convert an angle from gradians (gon) to degrees (1 gon = 0.9°) and radians. Gradians divide a right angle into 100 units and are used in surveying and some engineering fields.
Cuboid Space Diagonal Calculator Computes the space (3D) diagonal of a rectangular box from its length, width, and height. Useful for checking whether an object fits inside a container.
Polygon Interior Angle Sum Calculator For a simple polygon with n sides, computes the sum of all interior angles and, for a regular polygon, the measure of each interior angle.
System of Three Equations Solver Solves a system of three linear equations in three unknowns (x, y, z) using Cramer's rule and reports the coefficient determinant.
Roman Numeral to Number Converter Converts Roman numerals to integers and integers (1–3999) back to Roman numerals.
Tangent Calculator Computes the tangent (and cotangent) of an angle entered in degrees or radians.
Tetrahedron Surface Area Calculator Computes the total surface area, single face area, volume, and height of a regular tetrahedron from its edge length.
3D Midpoint Calculator Calculate the midpoint of two 3D points.
Arc Length (Radians) Calculator Computes the length of a circular arc given the circle radius and the central angle measured in radians.
Circle from Area Calculator Calculate a circle's radius, diameter and circumference from its area.
Divisor Sum Calculator Calculate the sum of all positive divisors of an integer, σ(n), along with the number of divisors. A core number-theory function used in studying perfect and abundant numbers.
Orthogonal Vectors Checker Check whether two 3D vectors are orthogonal (perpendicular) by computing their dot product — zero means orthogonal.
Pythagorean Triple Generator Generate a Pythagorean triple using Euclid’s formula from two integers m > n: a = m²−n², b = 2mn, c = m²+n². Every result is a set of whole-number right-triangle sides where a²+b²=c².
Line Intersection Calculator Find the intersection point of two lines given in slope-intercept form, y = mx + b. Returns the (x, y) coordinates, or detects parallel lines that never meet.
Sum of Squares Calculator Calculates the sum of squared deviations from the mean, along with the count, mean and sample variance of a data set.
Bezout Coefficients Calculator Find the Bezout coefficients x and y satisfying ax + by = gcd(a, b) using the extended Euclidean algorithm, along with the GCD itself. Foundational for modular inverses and number theory.
Binary Addition Calculator Adds two binary numbers and shows the sum in binary, decimal, and hexadecimal.
2×2 Matrix Inverse Calculator Calculate the inverse of a 2×2 matrix.
Prismatoid Volume Calculator Calculate the volume of a prismatoid using the prismoidal formula V = h⁄6 (A₁ + 4Aₘ + A₂), from the bottom, mid-section and top areas and the height. Works for prisms, pyramids, frustums and wedges.
Binary to Octal Converter Convert a binary number to octal and decimal. A quick base converter for programming, digital logic and computer-science study.
Sum and Difference Trig Calculator Evaluates the sine, cosine, and tangent of the sum or difference of two angles using the trig sum and difference identities.
Triangle Inradius Calculator Calculate the inradius (inscribed circle radius) of a triangle from its three sides.
Engineering Notation Converter Converts a number to engineering notation where the exponent is a multiple of three, with the matching SI prefix.
Geometric Series Convergence Checker Tests whether an infinite geometric series converges from its common ratio and gives the sum when it does.
Matrix Power Calculator Raises a square matrix to a non-negative integer power by repeated multiplication.
Miller-Rabin Primality Test Calculator Tests whether an integer is prime using the deterministic Miller-Rabin test with fixed witness bases.
Fraction Simplifier Reduce a fraction to its simplest form and see its decimal and percentage value.
Integrating Factor Calculator Computes the integrating factor μ = e^(∫P dx) for a first-order linear differential equation with a constant coefficient P, evaluated at a chosen x.
Continued Fraction Convergents Calculator Computes the successive convergents (best rational approximations) of a continued fraction from its term list.
Decimal to Hex Converter Convert decimal to hexadecimal and binary. Decimal to Hex Converter gives you the result instantly from a simple input.
Stirling Numbers Calculator Computes Stirling numbers of the first kind (cycles) and second kind (set partitions) for given n and k.
Polygon Inradius Calculator Finds the inradius (apothem) of a regular polygon from its number of sides and side length, plus its circumradius and area.
Triangle Circumradius Calculator Calculate the circumradius (circumscribed circle radius) of a triangle from its three sides.
BCD to Decimal Converter Convert binary-coded decimal (BCD), where each decimal digit is stored in a 4-bit group, back to a normal decimal number. Common in digital electronics and displays.
Absolute Value Equation Solver Solves absolute value equations of the form |ax + b| = c and reports all real solutions.
Radical Expression Simplifier Simplifies the nth root of a non-negative integer by factoring out perfect nth powers, e.g. sqrt(50) = 5√2.
Unit Vector Calculator Computes the magnitude of a 3D vector and divides each component by it to return the unit vector pointing in the same direction.
Binary to Decimal Converter Convert binary to decimal and hex. Binary to Decimal Converter gives you the result instantly from a simple input.
Legendre Symbol Calculator Compute the Legendre symbol (a/p) for an odd prime p using Euler’s criterion: it is 1 if a is a quadratic residue mod p, −1 if not, and 0 if p divides a.
Subtract Fractions Calculator Subtracts one fraction from another, reduces the result to lowest terms, and shows it as a fraction, a decimal, and a mixed number.