# MPHY0021 - 21/10/2021 - group 2
## Who is here?
:::danger
Remember to `rename` yourself by clicking on your zoom name (in the participants list) and change it to:
`SGX - Your name` being `X` the number of the group you have been assigned to.
If you disconnect and connect again, please rename yourself again.
:::
Add your name to the list.
- Alessandro Felder / he-him / [@alessandrofelder](https://github.com/alessandrofelder)
- Thandi Madula / she-her / [@thandi1908](https://github.com/thandi1908)
- Rohit Shekhar / he-him / [@roash](https://github.com/roash)
- Yu Pan (Peter)/he-him/[@ProfPeterAstroN](https://github.com/ProfPeterAstroN)
- Qingran Lu/she-her/[@QINGRANLU](https://github.com/QINGRANLU)
- Lifeng Luo/he-him/[@Llf54321](https://github.com/Llf54321)
- Will Hafner / he-him / [@ will43w](https://github.com/will43w)
- Jiaqi Guo / he-him / [@OliverG74](https://github.com/OliverG74)
- Tianmu Qiu / she-her / [@felixFelicisss](https://github.com/felixFelicisss)
## Ice-breaker Activity
:question: Name one thing you learned about Python in the class preparation and why do you think it's useful? :snake:
- mutable and immutable.
- classes example and how it was structured so different kinds could communicate with each other.
- dir function was helpful.
- loops for linear algebra.
- dictionary: when to use [], (), and {}?
- list:
- create a list: `a = [1,2,3]`
- get an element in the list: `element = a[0]`
- dict:
- create a dict: `d = {'name': 'Alessandro', 'age': 15}`
- get an element in the dict: `element = d['name']`
- variables and functions and loops syntax was interesting and easy-to-use due to similarities to MatLab syntax
## Exercise/Discussion notes
###### tags: `mphy0021` `teaching` `group`