Benchmark: pow 0.5 vs sqrt - MeasureThat.net

Tests:

Pow
var x = Math.pow(377.1671371459961, 0.5)
Sqrt
var y = Math.sqrt(377.1671371459961)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Pow
Sqrt

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser/OS: Firefox 136 on Linux

View result in a separate tab

Test name	Executions per second
Pow	1044289664.0 Ops/sec
Sqrt	1083426432.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

I'd be happy to help you understand the JavaScript microbenchmark on MeasureThat.net.

**What is tested?**

The benchmark measures the performance of two different methods for calculating the square root of a number: `Math.pow` (with exponent 0.5) and `Math.sqrt`. The test case uses the `Math` object, which is a built-in library in JavaScript that provides mathematical functions.

**Options compared**

Two options are compared:

1. **Math.pow**: This method calculates the power of a number using the `pow` function. In this case, it's used to calculate `x = Math.pow(377.1671371459961, 0.5)`.
2. **Math.sqrt**: This method directly calculates the square root of a number.

**Pros and cons**

Both methods have their advantages and disadvantages:

* **Math.pow**:
	+ Pros: More flexible, can be used to calculate any power, not just square roots.
	+ Cons: May be slower than `Math.sqrt` due to the overhead of calculating the power.
* **Math.sqrt**:
	+ Pros: Faster, more straightforward, and specifically optimized for square root calculations.
	+ Cons: Only calculates square roots; cannot be used for other powers.

In general, if you need to calculate a square root, using `Math.sqrt` is likely to be faster. However, if you need to calculate any power, using `Math.pow` might be more convenient.

**Library and purpose**

The `Math` object is a built-in library in JavaScript that provides mathematical functions for various operations, including exponentiation, roots, trigonometry, and more.

**Special JS feature or syntax**

There are no special features or syntaxes mentioned in this benchmark. The code uses standard JavaScript syntax and doesn't rely on any advanced features like ES6 modules or arrow functions.

**Other alternatives**

If you need to calculate square roots or powers in JavaScript, other methods you might use include:

* Using a library like `lodash` or `mathjs`, which provide optimized mathematical functions.
* Implementing your own recursive or iterative algorithms for calculating square roots and powers.
* Using a different programming language that supports mathematical operations out of the box.

Keep in mind that the choice of method depends on the specific requirements of your project, including performance considerations, readability, and maintainability.

Related benchmarks:

pow 0.5 vs sqrt (version: 0)

pow 0.5 vs sqrt

Comparing performance of: Pow vs Sqrt

Created: 4 years ago by: Guest

Jump to the latest result

Pow

Sqrt

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):