Math & Algebra
Free calculators for arithmetic, algebra, number theory, and combinatorics — from basic operations to advanced equations.
Quadratic Equation Calculator: Roots, Vertex & Discriminant Solver
Harmonic Mean Calculator — Speed, Finance & Data Analysis
Geometric Progression Calculator — Formulas, Sums & Convergence
Least Common Multiple (LCM) Calculator — Find LCM & GCD Instantly
Fibonacci Sequence Calculator: Compute Any Term Up to F(10,000)
GCD & LCM Calculator: Euclidean Algorithm for Up to 4 Integers
Factorial & Gamma Function Calculator: Exact BigInt and Γ(x) Results
Decimal to Fraction Calculator: Exact & Approximated Conversions
Arithmetic Progression Calculator: Find the N-th Term, Sum & Common Difference
Cube Root Calculator: Find Principal, Complex Roots & Perfect Cubes
Complex Number Calculator: Arithmetic, Polar Form & Conjugate Results
Completing the Square Calculator: Vertex Form, Roots & Focus Point
Collatz Conjecture Calculator: Hailstone Sequence Analyzer & Proof Explorer
Fractions Addition & Subtraction Calculator — Simplify Mixed Numbers Instantly
Absolute Value Calculator — Magnitude, Distance & Complex Modulus