Models, Math, and Python
Machine Learning
This course explains machine learning from first principles and uses practical examples to show how the methods work.
- Statistical foundations
- Learning algorithms
- Optimization
66 Topics · 726 Lessons
Academy courses
Learn with explanations, code, and plots.
Academy courses combine written explanations, editable code, interactive plots, and knowledge checks. You can change the examples and inspect the results on the same page.
Editable PythonInteractive plotsMathematical notationKnowledge checks
Chapter 08 · Gradient descent
Live lessonPYTHON · CELL 4
Writing example…⌘ ↵ to run
auto demo
Academy courses
Choose a course.
Each course organizes lessons into a clear sequence. Lessons include explanations, activities, and knowledge checks. You can read the available courses without signing in.
NLP, transformers, and LLMs
Coming soonLanguage AI
This course covers classical natural language processing, neural networks, transformers, and large language models.
- Classical NLP
- Neural language models
- Transformers and LLMs
Curriculum in preparation
Pricing, portfolios, and risk
Coming soonQuantitative Finance
This course covers financial theory, pricing models, portfolio construction, backtesting, execution, and risk.
- Asset pricing
- Portfolio construction
- Execution and risk
Curriculum in preparation
Prediction, planning, and control
Coming soonWorld Models
This course explains how intelligent systems represent an environment, predict what may happen next, and use those predictions to choose actions.
- State and learned dynamics
- Model-based planning
- Physical AI
Curriculum in preparation
Inside each chapter
Read the explanation, run the example, and check your understanding.
Each chapter contains prose, notation, executable examples, visual output, and short questions. You can study why a method works, change an assumption, and then apply what you learned.
Read
Detailed explanations
Chapters present each topic in sequence, with derivations and the background needed to understand the method.
Run
Editable code examples
Edit and run each example beside its explanation. The output appears on the same page.
Test
Plots that update
Change a parameter and run the experiment again. The plot updates so that you can examine the effect of the change.
Check
Check your understanding
Short questions ask you to apply the concept. Each answer includes an explanation and identifies topics to review.
Python, in the browser
Edit the code. Run Python. Read the output.
Academy keeps the code, terminal output, and chart in one view. Change a parameter and run the cell: Python calculates the result, prints the useful values, and redraws the plot. You see the effect of each change immediately.
Interactive plots
Use plots to test the ideas in each lesson.
Read the explanation, inspect the chart, change the inputs, and run the code again. The code, output, and plot remain together so that you can compare the results.
Check your understanding
Check what you understand.
Short questions follow each concept. After you choose an answer, you see the reasoning and which material to review before continuing.
- In context
- Questions follow the lesson you just completed.
- Immediate explanation
- Feedback explains the reasoning, not only the result.
- Topics to review
- Review a concept before continuing to the next lesson.
Knowledge check · 4 of 6
Books
Four subjects in one curriculum.
Read a single chapter or follow a complete course. Academy keeps your code, notes, and progress with your account.
All Academy Access
Access all Academy courses with one membership.
The membership includes courses in machine learning, language AI, quantitative finance, and world models. It also includes new Academy courses added while the membership is active.
- Access to every available Academy course
- Executable Python and interactive plots
- Knowledge checks, activities, and progress tracking
- One membership for the full course library
Monthly
$59.99/ month
$59.99 billed monthly
Available at launch
Quarterly
Save 15%
$51.00/ month
$152.99 billed every 3 months
Available at launch
Annual
Annual · Save 45%
$33.25/ month
$399.00 billed once a year
Available at launch
Academy courses
Choose a course and begin with the first lesson.
Public courses are available now. Additional chapters will be added to the four-book curriculum as they are completed.