Benchmark: square reverse vs sqrt

HTML Preparation code:

1048576**0.5 === 1024

Script Preparation code:

Math.sqrt(1048576) === 1024

Tests:

1024 === pow(1048576,0.5)
true
1048576 === 1024**0.5
true
Math.sqrt(1048576) === 1024
true

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1024 === pow(1048576,0.5)
1048576 === 1024**0.5
Math.sqrt(1048576) === 1024

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser/OS: Chrome 115 on Windows

View result in a separate tab

Test name	Executions per second
1024 === pow(1048576,0.5)	905256320.0 Ops/sec
1048576 === 1024**0.5	855654336.0 Ops/sec
Math.sqrt(1048576) === 1024	851342208.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark definition is a JSON object that contains information about the test case. In this case, there are two main options being compared:

1. `Math.sqrt(1048576) === 1024`
2. `1048576**0.5 === 1024`

These two expressions represent different ways to calculate the square root of a number in JavaScript.

**What is tested?**

The benchmark is testing the performance difference between these two approaches:

1. Using the built-in `Math.sqrt()` function.
2. Exponentiation with a fractional exponent (`**`) to calculate the square root.

In other words, the benchmark is asking: "Which approach is faster for calculating the square root of 1048576?"

**Pros and Cons**

Here are some pros and cons of each approach:

1. `Math.sqrt(1048576) === 1024`:
	* Pros:
		+ Typically faster due to being a built-in function.
		+ More readable code.
	* Cons:
		+ Less efficient for large numbers, as it uses a complex algorithm under the hood.
2. `1048576**0.5 === 1024`:
	* Pros:
		+ Can be more efficient for large numbers, as it uses exponentiation, which is often faster than `Math.sqrt()`.
	* Cons:
		+ Less readable code.

**Other considerations**

It's worth noting that the choice of approach depends on the specific use case and requirements. For example:

* If you need to calculate square roots frequently, using a built-in function like `Math.sqrt()` might be the better choice.
* If you're working with very large numbers or performance-critical code, using exponentiation to calculate the square root might be more efficient.

**Library usage**

There is no library being used in this benchmark. The expressions are simple arithmetic operations that are native to JavaScript.

**Special JS features or syntax**

None of the expressions use any special JavaScript features or syntax beyond basic arithmetic operators.

**Alternatives**

Some alternative approaches for calculating square roots include:

* Using a third-party library like `mathjs` or `core-js`, which provides more efficient and accurate implementations.
* Implementing your own custom algorithm, such as using the Babylonian method.
* Using a different language or programming paradigm that has built-in support for square root calculation.

However, these alternatives are not being tested in this specific benchmark.

Related benchmarks:

square reverse vs sqrt (version: 0)

Square vs square root

Comparing performance of: 1024 === pow(1048576,0.5) vs 1048576 === 1024**0.5 vs Math.sqrt(1048576) === 1024

Created: one year ago by: Guest

Jump to the latest result

1024 === pow(1048576,0.5)

1048576 === 1024**0.5

Math.sqrt(1048576) === 1024

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):