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math pow vs multiply **
(version: 0)
Comparing performance of:
pow vs mult
Created:
4 years ago
by:
Guest
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Tests:
pow
var x = Math.pow(54,2);
mult
var y = 54 ** 2
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
pow
mult
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to explain the benchmark being tested on MeasureThat.net. **Benchmark Overview** The test case compares two approaches for calculating the square of a number: `Math.pow(54, 2)` and `54 ** 2`. Both methods are designed to achieve the same result, but they may have different performance characteristics. **Options Compared** There are two options being compared: 1. `Math.pow(54, 2)`: This method uses the `pow()` function from the Math library in JavaScript. The `pow()` function raises a number to a given power and returns the result. 2. `54 ** 2`: This is an exponentiation operator, which is also known as a unary operator. It's a shorthand way of writing `(x) => x ** 2`, which calculates the square of a number. **Pros and Cons** **Math.pow()** Pros: * Well-defined in the specification * Typically faster than exponentiation operators (although this may not be noticeable for small numbers) * Can be used with negative numbers or fractional exponents Cons: * May have overhead due to function call * May not be as efficient as a simple operator **Exponentiation Operator (`**`)** Pros: * Fast and lightweight * Often faster than `Math.pow()` * More concise and readable Cons: * Less well-defined in the specification, which may lead to inconsistent behavior across browsers or versions * Only works with positive numbers (for negative numbers, you need to use a workaround) **Library Used** In this benchmark, the Math library is used for both `Math.pow()` and exponentiation operators. **Special JavaScript Features or Syntax** The test case uses exponentiation operators (`**`), which are a shorthand way of writing `(x) => x ** 2`. This syntax was introduced in ECMAScript 2015 (ES6). **Other Alternatives** If you want to calculate the square of a number, other approaches include: * Using a simple loop: `for (var i = 0; i < 2; i++) { result += x * x; }` * Using a binary exponentiation algorithm * Using a specialized library or function for fast exponentiation Keep in mind that these alternatives may have different performance characteristics and trade-offs compared to the options being tested in this benchmark. **Benchmark Preparation Code** The script preparation code is not provided, but it's likely that the tests are set up to execute both `Math.pow()` and the exponentiation operator (`**`) on a fixed input value (54) multiple times, and then compare the results.
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