* #transform} methods all return {@link Double#NaN}. The {@link #inverse} method returns the same
   * instance.
   */
  public static LinearTransformation forNaN() {
    return NaNLinearTransformation.INSTANCE;
  }

  /** Returns whether this is a vertical transformation. */
  public abstract boolean isVertical();

* 🌐 Update Korean translation for `docs/ko/docs/help-fastapi.md`. PR [#13262](https://github.com/fastapi/fastapi/pull/13262) by [@Zerohertz](https://github.com/Zerohertz).
* 🌐 Add Korean translation for `docs/ko/docs/advanced/custom-response.md`. PR [#13265](https://github.com/fastapi/fastapi/pull/13265) by [@11kkw](https://github.com/11kkw).

   *
   * <p>If the dataset contains any non-finite values ({@link Double#POSITIVE_INFINITY}, {@link
   * Double#NEGATIVE_INFINITY}, or {@link Double#NaN}) then the result is {@link
   * LinearTransformation#forNaN()}.
   *
   * @throws IllegalStateException if the dataset is empty or contains a single pair of values, or
   *     both the {@code x} and {@code y} dataset must have zero population variance
   */

- [Español (Spanish)](docs/es/README.md)
- [Português (Brazilian Portuguese)](docs/pt-BR/README.md)
- [Français (French)](docs/fr/README.md)
- [Deutsch (German)](docs/de/README.md)
- [한국어 (Korean)](docs/ko/README.md)

## Powered By

* [Lasta Di](https://github.com/lastaflute/lasta-di "Lasta Di"): DI Container
* [LastaFlute](https://github.com/lastaflute/lastaflute "LastaFlute"): Web Framework

* Hozzá tartozik kettő interaktív dokumentációs web felület.

---

Eddig csak a felszínt kapargattuk, de a lényeg hogy most már könnyebben érthető hogyan működik.

Próbáld kicserélni a következő sorban:

```Python
    return {"item_name": item.name, "item_id": item_id}
```

...ezt:

```Python
        ... "item_name": item.name ...
```

...erre:

```Python

spv,,orue,?midalv,?s&ar,itym,?t&en,ni,?u&4an,de,?vo&g,n,?ynzorg,zakvakidalv,?myc?p?ug??s!.&a&d&golov,nagarak,?gulak,i&groeg,kymlak,lerak,nemra,rikhsab,ssakahk,vodrom,zahkba,?lut,rahkub,vut,yegyda,znep,?bps,da&baghsa,rgonilest,?gunel,i&anatsuk,hcos,ovan,ttailgot,?k&alhsygnam,ihclan,s&legnahkra,m,n&a&mrum,yrb,?i&buytka,nbo,??tiort,vorkop,??l&ocarak,ybmaj,?na&gruk,jiabreza,ts&egad,hkazak-&htron,tsae,???ovonavi,r&adonsark,imidalv,?t&enxe,nek&hsat,mihc,??vo&hsalab,n,?ynzorg,z&akvakidalv,emret,??t&amo...