Math.sqrt()

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La  función Math.sqrt() retorna la raiz cuadrada de un numero, que esx0,Math.sqrt(x)=x=the uniquey0such thaty2=x\forall x \geq 0, \mathtt{Math.sqrt(x)} = \sqrt{x} = \text{the unique} \; y \geq 0 \; \text{such that} \; y^2 = x

Sintaxis

Math.sqrt(x)

Parametros

x
Un numero

Return value

The square root of the given number. If the number is negative, NaN is returned.

Descripción

Si el valor de x es negativo Math.sqrt() retorna NaN.

Because sqrt() is a static method of Math, you always use it as Math.sqrt(), rather than as a method of a Math object you created (Math is not a constructor).

Ejemplos

Using Math.sqrt()

Math.sqrt(9); // 3
Math.sqrt(2); // 1.414213562373095

Math.sqrt(1);  // 1
Math.sqrt(0);  // 0
Math.sqrt(-1); // NaN

Especificaciones

Specification Status Comment
ECMAScript 1st Edition (ECMA-262) Standard Initial definition. Implemented in JavaScript 1.0.
ECMAScript 5.1 (ECMA-262)
The definition of 'Math.sqrt' in that specification.
Standard  
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Math.sqrt' in that specification.
Standard  
ECMAScript 2017 Draft (ECMA-262)
The definition of 'Math.sqrt' in that specification.
Draft  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

See also

Etiquetas y colaboradores del documento

 Colaboradores en esta página: LotarMC
 Última actualización por: LotarMC,