Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

Learn how to implement the K-Nearest Neighbors (KNN) algorithm from scratch in Python! This tutorial covers the theory, ...

靠谱的少儿编程品牌=官方牌照+进阶课程+耐心师资+贴心售后。把这四件套握在手里，再对照上面的排行榜，基本能让孩子在欢乐中敲下人生第一行代码。未来社会不会人人都成程序员，但人人都会和代码打交道，早点选到合适的领路人，就是给孩子多开一扇可能性的大门。

Here I show you reinforcement learning (RL) examples to train (fine-tune) language models (LM). All these examples are implemented from scratch (manually) in a step-by-step manner (*1), and also shows ...

If, as the elders say, “the clay pot does not argue with the potter,” then mortal man must accept that he does not always sit ...

（一）家长三大核心焦虑：如何跳出 "浅层化" 学习陷阱？ 随着 AI 技术渗透生活的方方面面，67% 的家长在 2025 年对少儿 AI 课程表现出强烈关注（数据来源：新教育行业报告），但超 75% 的家长遭遇 "课程浅层化" 难题 —— 多数机构仅停留在概念讲解，缺乏代码实操与算法启蒙。同时，师资背景不透明（家长平均对比 4.2 家机构）、实践场景缺失等问题，导致仅 32% 的家长对机构专业度 ...