Benchmark: square vs sqrt - MeasureThat.net

HTML Preparation code:

1048576 === 1024**2

Script Preparation code:

Math.sqrt(1048576) === 1024

Tests:

pow(1024,2) === 1048576
true
1048576 === 1024**2
true
Math.sqrt(1048576) === 1024
true

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pow(1024,2) === 1048576
1048576 === 1024**2
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
pow(1024,2) === 1048576	862647872.0 Ops/sec
1048576 === 1024**2	859712192.0 Ops/sec
Math.sqrt(1048576) === 1024	839713664.0 Ops/sec

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

LLMs can make mistakes. Check important info.

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

**Benchmark Definition**
The benchmark is comparing three approaches to calculate the square of a number: using the `Math.sqrt()` function with exponentiation (`Math.pow()`) and the manual calculation of squaring a number (`a ** 2`).

**Options Compared**

1. **Manual Calculation**: Using the exponentiation operator (`**`) to calculate the square of a number.
	* Pros: Simple, efficient, and widely supported by JavaScript engines.
	* Cons: May not be as readable or maintainable as other approaches.
2. **Math.sqrt() with Exponentiation**: Using `Math.sqrt()` in combination with `Math.pow()` to calculate the square of a number.
	* Pros: Provides a clear understanding of the mathematical operation being performed, which can make code more readable and maintainable.
	* Cons: May be slower due to the additional function call.
3. **Manual Squaring**: Using simple arithmetic to calculate the square of a number (e.g., `a * a`).
	* Pros: Fast, lightweight, and easy to understand.
	* Cons: May not be as readable or maintainable as other approaches.

**Other Considerations**

* The benchmark focuses on comparing these three approaches for a specific use case (calculating the square of a number), which helps identify the most efficient method for this particular task.

**Library Usage**
None of the test cases uses any external libraries. The calculations are performed using built-in JavaScript functions or simple arithmetic operations.

**Special JS Features/Syntax**
There is no special JavaScript feature or syntax being tested in these benchmark cases. They focus on comparing different approaches to a straightforward calculation.

**Alternatives**
If you were to modify this benchmark to test other approaches, some alternatives could be:

* Using `Math.log()` and exponentiation to calculate the square root of a number.
* Implementing a custom squaring function using bitwise operations (e.g., shifting and masking).
* Comparing the performance of these methods with different data sizes or distributions.

However, for calculating the square of a single number like 1024, the manual calculation (`a ** 2`) is likely to be the most efficient approach.

Related benchmarks:

square vs sqrt (version: 0)

Square vs square root

Comparing performance of: pow(1024,2) === 1048576 vs 1048576 === 1024**2 vs Math.sqrt(1048576) === 1024

Created: one year ago by: Guest

Jump to the latest result

pow(1024,2) === 1048576

1048576 === 1024**2

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):