Math

441 tools · page 7 of 8

Isosceles Triangle Calculator Calculate the area, height and perimeter of an isosceles triangle from its base and equal side.
Joint Variation Calculator Solve joint variation z = k·x·y: find the constant k from a known point, then predict z for new x and y values.
Lagrange Interpolation Polynomial Calculator Builds the Lagrange interpolating polynomial through your data points and evaluates it at a chosen x.
Linear Equation Solver Solve any linear equation ax + b = c step by step and get the exact value of x — enter the coefficients and let the calculator do the algebra.
List Divisors Calculator Generate a complete, sorted list of every positive divisor (factor) of a whole number, along with the total divisor count.
Matrix Trace Calculator Compute the trace (sum of the main diagonal) and determinant of a 2×2 matrix.
Mersenne Number Calculator Compute the Mersenne number 2^p − 1 and check whether it is prime.
Mixed Number to Improper Fraction Calculator Converts a mixed number to an improper fraction or an improper fraction back to a mixed number, reducing the result to lowest terms and showing its decimal value.
Modular Multiplication Calculator Compute (a × b) mod m — the remainder when the product of two integers is divided by a modulus.
Narcissistic Number Checker Test whether a number is a narcissistic (Armstrong) number.
Nth Triangular Number Generator Computes the nth triangular number T(n) = n(n+1)/2, plus the previous and next values in the sequence.
Number to Words (Turkish) Converter Converts an integer into its written form in Turkish words.
Octal Addition Calculator Add two octal (base-8) numbers and see the sum in both octal and decimal.
Ones Complement Calculator Compute the one's complement of a binary number by flipping every bit within its width.
Palindrome Number Checker Check whether a number reads the same forwards and backwards.
Paraboloid Volume Calculator Computes the volume of a paraboloid of revolution (V = ½·π·r²·h) from its base radius and height — exactly half the enclosing cylinder.
Parallel Line Calculator Calculate the equation of a line that is parallel to a given slope and passes through a specific point — instantly get the slope and y-intercept.
Percentage Decrease Calculator Find the percentage decrease between an original and a new value.
Perfect Cube Checker Check whether a number is a perfect cube and see its nearest cube root and cube.
Perpendicular Line Calculator Calculate the equation of a line that is perpendicular to a given slope and passes through a specific point — instantly get the perpendicular slope and y-intercept.
Point Reflection Calculator Reflects a coordinate point over the x-axis, y-axis, or the origin.
Point Rotation Calculator Rotates a coordinate point by an angle about the origin.
Point to Plane Distance Calculator Perpendicular distance from a point to the plane ax+by+cz+d=0.
Point Translation Calculator Shifts a coordinate point by a translation vector.
Polygon Centroid Calculator Calculate the centroid (geometric center of mass) of a simple polygon from a list of its vertex coordinates, using the shoelace formula.
Polygon Diagonals Calculator Enter the number of sides to find a polygon’s diagonals and interior-angle sum.
Polynomial Addition Calculator Add two polynomials given as coefficient lists, aligning them by degree and returning the sum coefficients.
Prime Counting Calculator Compute π(x), the prime-counting function, showing how many primes are less than or equal to x using a sieve of Eratosthenes.
Prime Gap Calculator Find the primes just below and above a number and the gap between them.
Primes in Range Calculator Find and list all prime numbers between a starting and ending value (inclusive), along with a count of how many were found.
Primitive Root Calculator Find the smallest primitive root modulo n, the value whose powers generate every unit modulo n, when one exists.
Product of a List Calculator Calculate the product of all numbers in a list — multiply as many values as you want at once, with the total count shown alongside the result.
Ptolemy's Theorem Calculator Uses Ptolemy's theorem (AC·BD = AB·CD + BC·DA) to compute the diagonal product of a cyclic quadrilateral and solve for the second diagonal.
Pyramid Frustum Volume Calculator Volume of a truncated square pyramid from both base edges and height.
Quotient and Remainder Calculator Divide two numbers and instantly see the whole-number quotient along with the leftover remainder — ideal for long division practice and quick checks.
Radians to Degrees Calculator Convert radians to degrees instantly.
Radius of Curvature Calculator Find the radius of curvature R as the reciprocal of the curvature κ, R = 1/κ.
Ratio to Fraction Converter Convert a ratio into a simplified fraction. Ratio to Fraction Converter gives you the result instantly from a simple input.
Rationalize the Denominator Calculator Rationalize an expression of the form a/√b by multiplying by √b, giving a√b / b plus the simplified radical and decimal value.
Ray-Plane Intersection Calculator Finds the intersection point of a ray O + t·D with the plane n·X = d, returning the hit point, the parameter t, and whether the hit lies in front of the origin. Parallel rays report no intersection.
Reciprocal Calculator Calculate the reciprocal (multiplicative inverse) of a number — the value that, multiplied by the original, gives 1 — expressed as a decimal and as a percentage.
Remainder Calculator Calculate the remainder (and quotient) of dividing one integer by another — quick modulo arithmetic for math, programming, and everyday problems.
Repeating Decimal to Fraction Calculator Turn a repeating decimal into an exact reduced fraction from its whole part, non-repeating digits and repeating block.
Reuleaux Triangle Area Calculator Calculates the area and perimeter of a Reuleaux triangle (a constant-width curved triangle) from its width.
Reverse Number Calculator Reverse the digit order of any whole number and see the reversed value and its digit count.
Reverse Percentage Calculator Find the original value before a percentage increase or decrease was applied.
Right Triangle Side Calculator Find the missing leg and area of a right triangle from one leg and the hypotenuse.
Romberg Integration Calculator Estimate the definite integral of a selected function over an interval using Romberg integration (trapezoid rule with Richardson extrapolation).
Root Mean Square Calculator Calculate the root mean square (quadratic mean) of up to five values.
Running Total Calculator Turn a list of numbers into a running (cumulative) total — see how the sum grows step by step, useful for budgets, scores, and inventory tracking.
Scalar Vector Multiplication Calculator Multiplies a 3D vector (x, y, z) by a scalar k and reports the resulting vector and its magnitude.
Section Formula Calculator Find the point dividing a segment in the ratio m:n from its endpoints.
Semiperimeter Calculator Computes the semiperimeter of a triangle as half the sum of its three side lengths, the value used in Heron's formula.
Shamir Secret Sharing Calculator Deterministically splits an integer secret into n shares with a k-of-n recovery threshold using polynomial interpolation over a prime modulus.
Significant Figures Rounder Round a number to a chosen number of significant figures.
Simplex Method Iteration Calculator Performs a single simplex pivot iteration on a maximization tableau, choosing the entering and leaving variables and returning the updated tableau.
Simplify Aspect Ratio Calculator Reduces any width and height to a simplified aspect ratio like 16:9 plus its decimal ratio.
Simpson's 3/8 Rule Calculator Approximates a definite integral from equally-spaced function values using Simpson's 3/8 rule.
Slope Calculator Calculate the slope and angle of the line passing through two points.
Slope-Intercept Form Calculator Enter a slope and one point on the line to find the y-intercept b and write the full slope-intercept equation y = mx + b.