JavaScript Math.exp()

Math.exp(x) returns Euler's number e raised to the power x. In mathematical notation, it calculates e^x.

console.log(Math.exp(1)); // 2.718281828459045
console.log(Math.exp(2)); // 7.38905609893065

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Math.exp() syntax Top ↑

Math.exp(x)

Positive exponents Top ↑

console.log(Math.exp(2));    // 7.38905609893065
console.log(Math.exp(0.25)); // 1.2840254166877414

Negative exponents Top ↑

console.log(Math.exp(-2));   // 0.1353352832366127
console.log(Math.exp(-0.46)); // about 0.6312836455

Math.exp(0) Top ↑

console.log(Math.exp(0)); // 1

Math.exp(), Math.E and Math.pow() Top ↑

console.log(Math.exp(3));
console.log(Math.pow(Math.E, 3));
console.log(Math.E ** 3);

All three express the same mathematical idea, though floating-point representation may affect the last digits.

Math.exp() and Math.log() are inverse operations Top ↑

const x = 2.5;
console.log(Math.log(Math.exp(x))); // approximately 2.5

Math.log() →

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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