A square root of x is a number r such that r^2=x. In the days before calculators, students and professors alike had to calculate square roots by hand. A square root of a number is a value that, when multiplied by itself, gives the number. For example, both 3 and –3 are square roots of 9. Square roots work the opposite way of a square. Note that any positive real number has two square … The square root is therefore an nth root with n=2. How to use square root in a sentence. First, to square a number, multiply the number by itself. Square root definition is - a factor of a number that when squared gives the number. What is Square? See The square root of a number is a value that, when multiplied by itself, gives the number. Online square root calculator. Note: to insert a caret ^ symbol, press SHIFT + 6. n. Symbol i The square root of -1, corresponding to the point in the geometric representation of complex numbers as points in a plane. For example : The square of the numbers 3 is 9, therefore the square root of number 9 is 3. Square root of minus one synonyms, Square root of minus one pronunciation, Square root of minus one translation, English dictionary definition of Square root of minus one. Instead, the square root of a negative number would need to be complex, which is outside the scope of the Python square root function. To see a real-world application of the Python square root function, let’s turn to the sport of tennis. Note that (−4) × (−4) = 16 too, so −4 is also a square root of 16. The SQRT function in Excel returns the square root of a number.. 1. How to Calculate a Square Root by Hand. Square root, in mathematics, a factor of a number that, when multiplied by itself, gives the original number. Example: 4 × 4 = 16, so a square root of 16 is 4. The square root of a number is a value that can be multiplied by itself to give the original number. Definition of Square Root. The square root of x is given by the formula: √ x = r Enter the input number (x) and press the = button: Square Root Calculator. Calculate the square root of x. As early as the 2nd millennium bc, the Babylonians possessed effective methods for approximating square roots. When written in the form x^(1/2) or especially sqrt(x), the square root of x may also be called the radical or surd. For example, 4 * 4 = 16 or 4^2 = 16. Square Roots in the Real World.