關於線性代數的學習筆記,參考台大 李宏毅 教授 2018 年的線上影片
相關講義可以參閱 http://speech.ee.ntu.edu.tw/~tlkagk/courses_LA18.html
What is Linear Algebra
System of Linear Equations
Vector
Matrix
Matrix-Vector Product
Have Solution or not
# picoCTF2018
[TOC]
## General Skills
### General Warmup 1
**題敘:**
:::warning
If I told you your grade was 0x41 in hexadecimal, what would it be in ASCII?
:::
**解法:**
```python=
print(chr(0x41))
```
**輸出:**
```
A
```
**flag:**
```
picoCTF{A}
```
### General Warmup 2
**題敘:**
:::warning
Can you convert the number 27 (base 10) to binary (base 2)?
:::
**解法:**
```python=
print(format(27,'b'))
```
**輸出:**
```
11011
```
**flag:**
```
picoCTF{11011}
```
### General Warmup 3
**題敘:**
:::warning
What is