Survey: Machine Learning with Quantum Computers
The frameworks in this book are called the CQ approach, which treats the systems that generate data as classical systems…
May 2023
kevin-tofu Create csv files for vector database
def file2docs( file_path: str ) -> list[WikiDict]: result: list[WikiDict] = [] with open(file_path, encoding="utf-8") as f: for line in f:…
How to have Global Variables on Express, Nodejs
const log4js = require('log4js') const { Router } = require('express') const router = Router() const myfunc_set = async (req, res)…
Note: Quantum Computing (1)
Quantum Computing State space Unitary Matrix and Operator Hermite Matrix and Operator Some Rules of Dirac Form (Norm of a…
Handling Multiple Exceptions
try: # The code that exceptions can be caused # ... except Exception1 as e: # Exception1 # ... except…
How to create accumulated bar graph using Matplotlib
import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as plt import numpy as np fig = plt.figure() ax1 = fig.add_subplot(1, 1, 1) p0…
How to use matplotlib without X-Window-Server
import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as plt fig = plt.figure() ax1 = fig.add_subplot(1, 1, 1) ax1.plot(range(20)) ax1.grid() fig.savefig('aaa.png')
Bad Tips: download files without using SSL authentication
About If you don’t have SSL certificate, downloading files sometimes get failed. And the error like ssl.SSLError happens. Here shows…
How to Clip media using ffmpeg
ffmpeg -i input.mp3 -ss 00:00:00 -t 00:04:00 -acodec copy output.mp3
How to get client identification number websocket/FastAPI
@app.websocket("/ws") async def websocket_endpoint(ws: WebSocket): await ws.accept() key = ws.headers.get('sec-websocket-key')