Question

  ai giúp mình viết chương trình với ạ (Python á) 

Sure, you can use the `pytesseract` library in Python to extract text from images. Here's a simple program to do that:

First, make sure you have `pytesseract` and `PIL` installed. You can install them using pip:

```bash
pip install pytesseract pillow
```

Also, make sure you have Tesseract OCR installed on your system. You can download it from [here](https://github.com/tesseract-ocr/tesseract).

Here's a sample Python script to extract text from the image:

```python
from PIL import Image
import pytesseract

# Path to the tesseract executable
pytesseract.pytesseract.tesseract_cmd = r'path_to_tesseract_executable'

# Open the image file
img = Image.open('path_to_your_image.jpg')

# Use pytesseract to extract text
text = pytesseract.image_to_string(img, lang='vie')

print(text)
```

Replace `'path_to_tesseract_executable'` with the path where Tesseract is installed on your system, and `'path_to_your_image.jpg'` with the path to your image file.

This script will print the text extracted from the image. If there are any mathematical expressions, you might need additional processing to convert them into LaTeX, but `pytesseract` primarily extracts plain text.