71 lines
2.6 KiB
Markdown
71 lines
2.6 KiB
Markdown
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---
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title: Averages-Pythagorean means
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id: 594d966a1467eb84194f0086
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challengeType: 5
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videoUrl: ''
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localeTitle: 平均值 - 毕达哥拉斯指的是
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---
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## Description
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<section id="description"><p class="rosetta__paragraph">计算整数<big>1</big>到<big>10</big> （包括）的所有三个<a class="rosetta__link--wiki" href="https://en.wikipedia.org/wiki/Pythagorean means" title="wp：毕达哥拉斯意味着">毕达哥拉斯方法</a> 。 </p><p class="rosetta__paragraph">为这组正整数显示<big>$ A（x_1，\ ldots，x_n）\ geq G（x_1，\ ldots，x_n）\ geq H（x_1，\ ldots，x_n）$</big> 。 </p>这三种方法中最常见的<a class="rosetta__link--rosetta" href="http://rosettacode.org/wiki/Averages/Arithmetic mean" title="平均值/算术平均值">算术平均值</a>是列表的总和除以其长度： <big>$ A（x_1，\ ldots，x_n）= \ frac {x_1 + \ cdots + x_n} {n} $</big> <a class="rosetta__link--wiki" href="https://en.wikipedia.org/wiki/Geometric mean" title="wp：几何平均值">几何mean</a>是列表产品的$ n $ th根： <big>$ G（x_1，\ ldots，x_n）= \ sqrt [n] {x_1 \ cdots x_n} $</big> <a class="rosetta__link--wiki" href="https://en.wikipedia.org/wiki/Harmonic mean" title="wp：谐波意味着">调和平均值</a>是$ n $除以总和列表中每个项目的倒数： <big>$ H（x_1，\ ldots，x_n）= \ frac {n} {\ frac {1} {x_1} + \ cdots + \ frac {1} {x_n}} $</big> <p class="rosetta__paragraph">假设输入是包含所有数字的有序数组。 </p><p class="rosetta__paragraph">要获得答案，请按以下格式输出对象： </p><pre class="rosetta__pre"> {
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值：{
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算术：5.5，
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几何：4.528728688116765，
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谐波：3.414171521474055
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}，
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测试：'是A> = G> = H？是'
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}
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</pre></section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>pythagoreanMeans</code>是一种功能。
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testString: 'assert(typeof pythagoreanMeans === "function", "<code>pythagoreanMeans</code> is a function.");'
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- text: '<code>pythagoreanMeans([1, 2, ..., 10])</code>应该等于上面相同的输出。'
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testString: 'assert.deepEqual(pythagoreanMeans(range1), answer1, "<code>pythagoreanMeans([1, 2, ..., 10])</code> should equal the same output above.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function pythagoreanMeans (rangeArr) {
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// Good luck!
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}
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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