freeCodeCamp/curriculum/challenges/english/08-data-analysis-with-python/numpy/what-is-numpy.md

---
id: 5e9a0a8e09c5df3cc3600ed2
title: What is NumPy
challengeType: 11
videoId: 5Nwfs5Ej85Q
dashedName: what-is-numpy
---

# --question--

## --text--

Why are Numpy arrays faster than regular Python lists?

## --answers--

Numpy does not perform type checking while iterating through objects.

---

Numpy uses fixed types.

---

Numpy uses contiguous memory.

---

All of the above.

## --video-solution--

4
feat: Add more video challenges (#38598) Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> 2020-04-21 12:42:19 -04:00			`---`
			`id: 5e9a0a8e09c5df3cc3600ed2`
			`title: What is NumPy`
			`challengeType: 11`
			`videoId: 5Nwfs5Ej85Q`
feat(curriculum): restore seed + solution to Chinese (#40683) * feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com> 2021-01-13 03:31:00 +01:00			`dashedName: what-is-numpy`
feat: Add more video challenges (#38598) Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> 2020-04-21 12:42:19 -04:00			`---`

Feat: add new Markdown parser (#39800) and change all the challenges to new `md` format. 2020-11-27 19:02:05 +01:00			`# --question--`
fix(curriculum): convert all video challenges to markdown (#39189) 2020-08-04 20:56:41 +01:00
Feat: add new Markdown parser (#39800) and change all the challenges to new `md` format. 2020-11-27 19:02:05 +01:00			`## --text--`
feat: Add more video challenges (#38598) Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> 2020-04-21 12:42:19 -04:00
Feat: add new Markdown parser (#39800) and change all the challenges to new `md` format. 2020-11-27 19:02:05 +01:00			`Why are Numpy arrays faster than regular Python lists?`
fix(curriculum): convert all video challenges to markdown (#39189) 2020-08-04 20:56:41 +01:00
Feat: add new Markdown parser (#39800) and change all the challenges to new `md` format. 2020-11-27 19:02:05 +01:00			`## --answers--`
feat: Add more video challenges (#38598) Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> 2020-04-21 12:42:19 -04:00
Feat: add new Markdown parser (#39800) and change all the challenges to new `md` format. 2020-11-27 19:02:05 +01:00			`Numpy does not perform type checking while iterating through objects.`
fix(curriculum): convert all video challenges to markdown (#39189) 2020-08-04 20:56:41 +01:00
Feat: add new Markdown parser (#39800) and change all the challenges to new `md` format. 2020-11-27 19:02:05 +01:00			`---`

			`Numpy uses fixed types.`

			`---`

			`Numpy uses contiguous memory.`

			`---`

			`All of the above.`

			`## --video-solution--`

			`4`
feat: Add more video challenges (#38598) Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> 2020-04-21 12:42:19 -04:00