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Angelos Chalaris
2020-09-15 16:28:04 +03:00
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snippets/binomialCoefficient.md
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@ -5,11 +5,11 @@ tags: math,intermediate
Evaluates the binomial coefficient of two integers `n` and `k`.
Use `Number.isNaN()` to check if any of the two values is `NaN`.
Check if `k` is less than `0`, greater than or equal to `n`, equal to `1` or `n - 1` and return the appropriate result.
Check if `n - k` is less than `k` and switch their values accordingly.
Loop from `2` through `k` and calculate the binomial coefficient.
Use `Math.round()` to account for rounding errors in the calculation.
- Use `Number.isNaN()` to check if any of the two values is `NaN`.
- Check if `k` is less than `0`, greater than or equal to `n`, equal to `1` or `n - 1` and return the appropriate result.
- Check if `n - k` is less than `k` and switch their values accordingly.
- Loop from `2` through `k` and calculate the binomial coefficient.
- Use `Math.round()` to account for rounding errors in the calculation.
```js
const binomialCoefficient = (n, k) => {
@ -26,4 +26,4 @@ const binomialCoefficient = (n, k) => {
```js
binomialCoefficient(8, 2); // 28
```
```