chore(learn): Applied MDX format to Chinese curriculum files (#40462)

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Randell Dawson
2020-12-16 00:37:30 -07:00
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---
id: 5a23c84252665b21eecc7e76
title: 伽玛功能
challengeType: 5
videoUrl: ''
title: 伽玛功能
---
## Description
<section id="description">实现一个算法(或更多)来计算<a href="https://en.wikipedia.org/wiki/Gamma function">Gamma</a> $ \ Gamma $)函数(仅在实际字段中)。 Gamma功能可以定义为 <div style="padding-left: 4em;"> <big><big>$ \ Gammax= \ displaystyle \ int_0 ^ \ infty t ^ {x-1} e ^ { - t} dt $</big></big> </div></section>
# --description--
## Instructions
<section id="instructions">
</section>
实现一个算法(或更多)来计算[Gamma](<https://en.wikipedia.org/wiki/Gamma function>) $ \\ Gamma $)函数(仅在实际字段中)。 Gamma功能可以定义为
## Tests
<section id='tests'>
$ \\ Gammax= \\ displaystyle \\ int_0 ^ \\ infty t ^ {x-1} e ^ { - t} dt $
```yml
tests:
- text: <code>gamma</code>应该是一个功能。
testString: assert(typeof gamma=='function')
- text: '<code>gamma(&quot;+tests[0]+&quot;)</code>应该返回一个数字。'
testString: assert(typeof gamma(.1)=='number')
- text: '<code>gamma(&quot;+tests[0]+&quot;)</code>应该返回<code>&quot;+results[0]+&quot;</code> 。'
testString: assert.equal(round(gamma(.1)), round(9.513507698668736))
- text: '<code>gamma(&quot;+tests[1]+&quot;)</code>应该返回<code>&quot;+results[1]+&quot;</code> 。'
testString: assert.equal(round(gamma(.2)), round(4.590843711998803))
- text: '<code>gamma(&quot;+tests[2]+&quot;)</code>应该返回<code>&quot;+results[2]+&quot;</code> 。'
testString: assert.equal(round(gamma(.3)), round(2.9915689876875904))
- text: '<code>gamma(&quot;+tests[3]+&quot;)</code>应该返回<code>&quot;+results[3]+&quot;</code> 。'
testString: assert.equal(round(gamma(.4)), round(2.218159543757687))
- text: '<code>gamma(&quot;+tests[4]+&quot;)</code>应返回<code>&quot;+results[4]+&quot;</code> 。'
testString: assert.equal(round(gamma(.5)), round(1.7724538509055159))
# --hints--
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
`gamma`应该是一个功能。
```js
function gamma (x) {
// Good luck!
}
assert(typeof gamma == 'function');
```
</div>
### After Test
<div id='js-teardown'>
`gamma("+tests[0]+")`应该返回一个数字。
```js
console.info('after the test');
assert(typeof gamma(0.1) == 'number');
```
</div>
</section>
## Solution
<section id='solution'>
`gamma("+tests[0]+")`应该返回`"+results[0]+"`
```js
// solution required
assert.equal(round(gamma(0.1)), round(9.513507698668736));
```
/section>
`gamma("+tests[1]+")`应该返回`"+results[1]+"`
```js
assert.equal(round(gamma(0.2)), round(4.590843711998803));
```
`gamma("+tests[2]+")`应该返回`"+results[2]+"`
```js
assert.equal(round(gamma(0.3)), round(2.9915689876875904));
```
`gamma("+tests[3]+")`应该返回`"+results[3]+"`
```js
assert.equal(round(gamma(0.4)), round(2.218159543757687));
```
`gamma("+tests[4]+")`应返回`"+results[4]+"`
```js
assert.equal(round(gamma(0.5)), round(1.7724538509055159));
```
# --solutions--