Square Root Calculator

Square Root, Radical & Babylonian Method Calculator

Evaluate real & imaginary roots, simplify radical factors, and explore iterative numerical convergence algorithms

Input any positive, negative, or decimal value
Principal Square Root (√x)
12.000000
Perfect Square Integer
Both Roots: ±12.000000 • (±12)² = 144
Negative Root (-√x) -12.000000 Secondary algebraic solution
Simplified Radical Form 12 Exact integer root
Nearest Perfect Squares 121 < 144 < 169 11² < x < 13²
Fractional Exponent 144^(1/2) Base raised to power 0.500
Positive integer to factor and reduce into a√b
Exact Reduced Radical (a√b)
6√2
Decimal: ≈ 8.485281 • a = 6, b = 2
Extracted Square Factor (a²) 36 (6²) Largest perfect square factor
Square-Free Remainder (b) 2 Contains no square factors > 1
Complete Prime Factorization 2³ × 3² Canonical prime decomposition
Continued Fraction Expansion [8; (2, 16)] Periodic infinite continued fraction
Calculates √S via recursive arithmetic mean
Starting guess approximation
Iter (n) Approximation (xₙ) Reciprocal (S / xₙ) Error (|xₙ² – S|)
Iterative Update Formula xₙ₊₁ = ½(xₙ + S/xₙ) Newton-Raphson order-2 convergence
Convergence Speed Quadratically Convergent Doubles correct decimal digits each step