The Math.exp()
static method returns e raised to the power of a number. That is
$$\backslash mathtt\{\backslash operatorname\{Math.exp\}(x)\}\; =\; \backslash mathrm\{e\}^x$$
The Math.exp()
static method returns e raised to the power of a number. That is
$$\backslash mathtt\{\backslash operatorname\{Math.exp\}(x)\}\; =\; \backslash mathrm\{e\}^x$$
Math.exp(x)
x
A number.
A nonnegative number representing e^{x}, where e is the base of the natural logarithm.
Because exp()
is a static method of Math
, you always use it as Math.exp()
, rather than as a method of a Math
object you created (Math
is not a constructor).
Beware that e
to the power of a number very close to 0 will be very close to 1 and suffer from loss of precision. In this case, you may want to use Math.expm1
instead, and obtain a much higher-precision fractional part of the answer.
Math.exp(-Infinity); // 0 Math.exp(-1); // 0.36787944117144233 Math.exp(0); // 1 Math.exp(1); // 2.718281828459045 Math.exp(Infinity); // Infinity
Specification |
---|
ECMAScript Language Specification # sec-math.exp |
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
exp |
1 | 12 | 1 | 3 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1.0 | 0.10.0 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/exp