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Math.pow vs Exponentiation vs Multiplication
(version: 0)
Comparing performance of:
Math.pow vs Exponentiation vs Multiplication
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var n = 1.234567;
Tests:
Math.pow
var x = Math.pow(n, 2);
Exponentiation
var y = n ** 2;
Multiplication
var y = n * n;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Math.pow
Exponentiation
Multiplication
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
10 months ago
)
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Mobile Safari/537.36
Browser/OS:
Chrome Mobile 138 on Android
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Test name
Executions per second
Math.pow
140092320.0 Ops/sec
Exponentiation
136438432.0 Ops/sec
Multiplication
122603144.0 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of MeasureThat.net and understand what's being tested in this benchmark. **Benchmark Overview** The benchmark compares the performance of three ways to calculate the square of a number: `Math.pow`, exponentiation (`n ** 2`), and multiplication (`n * n`). The goal is to determine which method is the fastest. **Options Compared** 1. **Math.pow**: This is a built-in JavaScript function that raises the first argument to the power of the second argument. 2. **Exponentiation (n ** 2)**: This uses the exponentiation operator (`**`) to raise `n` to the power of 2. 3. **Multiplication (n * n)**: This simply multiplies `n` by itself. **Pros and Cons** * **Math.pow**: + Pros: Widely supported, easy to read and write. + Cons: May have performance overhead due to function call. * **Exponentiation (n ** 2)**: + Pros: Often faster than `Math.pow`, as it's a single operator instruction. + Cons: May not be supported in older browsers or environments. * **Multiplication (n * n)**: + Pros: Simple, fast, and widely supported. + Cons: Requires two multiplication operations, which may lead to more calculations. **Library/Function Used** None. This benchmark doesn't use any external libraries or functions beyond the standard JavaScript math library. **Special JS Features/Syntax** The benchmark uses a feature introduced in ECMAScript 2016 (ES6): the exponentiation operator (`**`). This allows for concise and expressive code, but may not be supported in older browsers or environments. **Other Considerations** * The benchmark runs on a desktop environment with Chrome 129. * The results are measured in executions per second, which indicates how many times each operation is executed per second. **Alternative Approaches** If you want to write your own benchmark for this scenario, you could use other approaches, such as: 1. Using a JavaScript interpreter or compiler that supports benchmarking features. 2. Writing a custom benchmarking framework using Node.js or another JavaScript runtime. 3. Using a third-party library like Benchmark.js or JSBench. Keep in mind that writing a high-quality benchmark requires careful consideration of factors like input variability, execution time, and data sampling.
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