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Square Root Calculator

Square Root Calculator takes a number as input, and finds the square root of given number.

Inputs

\(\sqrt{n} = ?\)

Sample inputs

n: 10

n: 620

n: 20500

n: -49



There are several methods to find the square root of a number

The following are some of the most commonly used methods.

  • Newton's Method: It's an iterative algorithm for finding successively better approximations to the roots (or zeroes) of a real-valued function.
  • Taylor Series Expansion: Square roots can be computed using Taylor series expansion, where the square root function is approximated using a polynomial expansion around a specific point.

Steps to Find the Square Root using Newton's Method

Follow these steps to find the square root of \(n\).

  • Start with an initial guess: Choose any positive number '\(a\)' as your initial guess for the square root of n, i.e., \(\sqrt{n}\).
  • Improve the guess: Use the formula: \(a_{new} = \frac{1}{2}(a + \frac{n}{a})\) to get a new approximation of the square root. This new value \(a_{new}\) is typically closer to the actual square root than the previous guess '\(a\)'.
  • Repeat until convergence: Keep repeating step 2 with the new value of '\(a\)' until the value of '\(a\)' stops changing significantly (or until you reach a desired level of precision).


Square Roots of Numbers from 1 to 100



Arithmetic Calculators