Math.tanh()

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La funcion Math.tanh() devuelve la hyperbolica tangente de un numero, esto es

tanhx=sinhxcoshx=ex-e-xex+e-x=e2x-1e2x+1\tanh x = \frac{\sinh x}{\cosh x} = \frac {e^x - e^{-x}} {e^x + e^{-x}} = \frac{e^{2x} - 1}{e^{2x}+1}

Prubalo

console.log(Math.tanh(-1));
// Expected output: -0.7615941559557649

console.log(Math.tanh(0));
// Expected output: 0

console.log(Math.tanh(Infinity));
// Expected output: 1

console.log(Math.tanh(1));
// Expected output: 0.7615941559557649

Sintaxis

Math.tanh(x)

Parametros

x: Un numero.

Devolver valor

La hyperbolica tangente del numero obtenido.

Descripcion

Porque tanh() es un metodo estatico de Math, siempre se usa como Math.tanh(), en lugar de ser un metodo de Math objeto que creas (Math no es un constructor).

Ejemplos

Usando `Math.tanh()`

Math.tanh(0); // 0
Math.tanh(Infinity); // 1
Math.tanh(1); // 0.7615941559557649

Polyfill

Esto puede ser emulado con ayuda de Math.exp() funcion:

Math.tanh =
  Math.tanh ||
  function (x) {
    var a = Math.exp(+x),
      b = Math.exp(-x);
    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (a + b);
  };

Especificaciones

Specification
ECMAScript 2027 LanguageSpecification # sec-math.tanh

Compatibilidad con navegadores

Ver tambin

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This page was last modified on 11 feb 2025 by MDN contributors.

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Math.tanh()

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