chore(i18n,curriculum): processed translations (#43390)

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---
id: 5a23c84252665b21eecc8041
title: Sum of a series
title: Soma de uma série
challengeType: 5
forumTopicId: 302333
dashedName: sum-of-a-series
@ -8,51 +8,51 @@ dashedName: sum-of-a-series
# --description--
Compute the **n**<sup>th</sup> term of a [series](https://en.wikipedia.org/wiki/Series (mathematics)), i.e. the sum of the **n** first terms of the corresponding [sequence](https://en.wikipedia.org/wiki/sequence). Informally this value, or its limit when **n** tends to infinity, is also called the *sum of the series*, thus the title of this task. For this task, use: $S_n = \displaystyle\sum_{k=1}^n \frac{1}{k^2}$.
Calcule o **n**<sup></sup>-ésimo termo de uma [série](https://en.wikipedia.org/wiki/Series (mathematics)), ou seja, a soma dos **n** primeiros termos da [sequência](https://en.wikipedia.org/wiki/sequence) correspondente. Informalmente, esse valor, ou seu limite quando **n** tende ao infinito, é também chamado de *soma da série*, razão do título desta tarefa. Para esta tarefa, use: $S_n = \displaystyle\sum_{k=1}^n \frac{1}{k^2}$.
# --instructions--
Write a function that take $a$ and $b$ as parameters and returns the sum of $a^{th}$ to $b^{th}$ members of the sequence.
Escreva uma função que receba $a$ e $b$ como parâmetros e retorne a soma do $a$-ésimo ao $b$-ésimo termos da sequência.
# --hints--
`sum` should be a function.
`sum` deve ser uma função.
```js
assert(typeof sum == 'function');
```
`sum(1, 100)` should return a number.
`sum(1, 100)` deve retornar um número.
```js
assert(typeof sum(1, 100) == 'number');
```
`sum(1, 100)` should return `1.6349839001848923`.
`sum(1, 100)` deve retornar `1.6349839001848923`.
```js
assert.equal(sum(1, 100), 1.6349839001848923);
```
`sum(33, 46)` should return `0.009262256361481223`.
`sum(33, 46)` deve retornar `0.009262256361481223`.
```js
assert.equal(sum(33, 46), 0.009262256361481223);
```
`sum(21, 213)` should return `0.044086990748706555`.
`sum(21, 213)` deve retornar `0.044086990748706555`.
```js
assert.equal(sum(21, 213), 0.044086990748706555);
```
`sum(11, 111)` should return `0.08619778593108679`.
`sum(11, 111)` deve retornar `0.08619778593108679`.
```js
assert.equal(sum(11, 111), 0.08619778593108679);
```
`sum(1, 10)` should return `1.5497677311665408`.
`sum(1, 10)` deve retornar `1.5497677311665408`.
```js
assert.equal(sum(1, 10), 1.5497677311665408);