Math.asin()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since julio de 2015.

La Funcion Math.asin() retorna El arco seno (en radianes) de un número, eso es.

∀x∊[-1;1],Math.asin(x)=arcsin(x)= the unique y∊[-π2;π2]such thatsin(y)=x\forall x \in [{-1};1],;\mathtt{\operatorname{Math.asin}(x)} = \arcsin(x) = \text{ the unique } ; y \in \left[-\frac{\pi}{2}; \frac{\pi}{2}\right] , \text{such that} ; \sin(y) = x

Syntax

Math.asin(x)

Parametros

Un Numero.

Return value

The arcsine (in radians) of the given number if it's between -1 and 1; otherwise, NaN.

Descripcion

The Math.asin() method returns a numeric value between -π2-\frac{\pi}{2} and π2\frac{\pi}{2} radians for x between -1 and 1. If the value of x is outside this range, it returns NaN.

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

Ejemplos

Usando Math.asin()

js
Math.asin(-2); // NaN
Math.asin(-1); // -1.5707963267948966 (-pi/2)
Math.asin(0); // 0
Math.asin(0.5); // 0.5235987755982989
Math.asin(1); // 1.5707963267948966 (pi/2)
Math.asin(2); // NaN

For values less than -1 or greater than 1, Math.asin() returns NaN.

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This page was last modified on 5 ago 2023 by MDN contributors.

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Math.asin()

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