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math pow vs multiply 8 times
(version: 0)
Comparing performance of:
pow vs mult
Created:
7 years ago
by:
Guest
Go to the latest result
Tests:
pow
var x = Math.pow(54,8);
mult
var y = 54*54*54*54*54*54*54*54
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
pow
mult
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/136.0.0.0 Safari/537.36 Edg/136.0.0.0
Browser/OS:
Chrome 136 on Windows
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<iframe src="https://measurethat.net/Embed?id=603329" width="100%" height="500px"></iframe>
mult
141.6M/s
pow
130.8M/s
View exact numbers
Test name
Executions per second
✓
mult
141,609,184 Ops/sec
pow
130,789,600 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested. **Benchmark Overview** The benchmark, named "math pow vs multiply 8 times", is designed to compare the performance of two approaches for calculating `x` in the equation `x = Math.pow(54, 8)` and `y = 54*54*54*54*54*54*54*54`, respectively. **Options Compared** Two options are being compared: 1. **Math.pow**: This method uses the exponentiation operator (`**`) to raise the base number (54) to the power of 8. 2. **Multiplication**: This approach multiplies the base number by itself 8 times to achieve the same result. **Pros and Cons** * **Math.pow**: + Pros: More concise, expressive, and readable code. + Cons: May incur additional overhead due to the use of a specialized function call. * **Multiplication**: + Pros: Can be faster for large exponents due to the ability to reuse intermediate results. + Cons: Requires more code lines, making it less readable. **Other Considerations** In general, the choice between `Math.pow` and multiplication depends on the specific use case and performance requirements. If readability is prioritized over raw speed, `Math.pow` is likely a better choice. However, if every last bit of performance can be squeezed out, multiplication might be a better option. **Library Used** None are mentioned in the provided benchmark. **Special JS Features or Syntax** There's no special JavaScript feature or syntax being used in these tests. The code uses standard JavaScript syntax and features available since ES6 (ECMAScript 2015). **Alternative Approaches** Other alternative approaches could be considered, such as: 1. **Binary exponentiation**: A method that reduces the number of multiplications required for large exponents. 2. **Fast Fourier Transform (FFT)**: A mathematical algorithm used for efficient exponentiation in certain numerical computations. These alternatives might be more suitable for very large exponents or specific performance-critical applications, but are not relevant to this particular benchmark. In summary, the "math pow vs multiply 8 times" benchmark is designed to compare the performance of two simple approaches for calculating an exponent. While `Math.pow` is a concise and expressive option, multiplication can be faster for very large exponents due to reusing intermediate results.
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