NetEase Youdao has released an interactive assistant for studying mathematics, named after the mathematician Leonhard Euler. The application is now available in app stores, according to an article published by QbitAI on November 5th.
Unlike typical homework apps that solve problems via photo search and simply provide a final answer with a text explanation, the new agent combines step-by-step learning, the ability to ask follow-up questions, and animated diagrams on an interactive whiteboard.
Youdao developed this product to address a common problem: students can read a solved solution but still don't understand why a specific auxiliary line was drawn in geometry or how to work with a function when conditions change. The company states that the agent's goal is to help students move from understanding a ready-made answer to being able to solve similar problems independently.
The learning process is divided into three stages. First, the agent hints at the direction of the solution and then proceeds through key deductions and calculations step-by-step, concluding by stating the method used and the core concept the problem tests. Second, students can pause the process at any step and ask clarifying questions, allowing the explanation to adapt to where difficulties arise, rather than following a fixed script.
The third stage is visualization. The agent uses a dynamic board, graphical demonstrations, and formula derivations to make abstract connections visible. In geometry, it can show step-by-step how an auxiliary line relates to the given conditions. When working with functions, it links formulas and parameters to changes on the graph, and for derivations, it reveals the board line by line.
Youdao claims that this product is based on nearly two decades of developing educational products and the company's proprietary operating model. Its first AI pencil, which was sold, sold out after its launch in February 2025; about 60% of requests were for middle school natural science questions, and later the pencils were supplemented with whiteboard-style video answers and multi-turn dialogue capabilities.
Regarding models, Youdao launched its Confucian educational model in 2023, made the Confucius-o1 reasoning model public in 2025, and updated it to the fourth-generation multimodal Confucian model this year, which, according to the company, handles complex visual tasks in mathematics and natural sciences better.
The company has not yet disclosed which specific model powers the new agent, what educational levels it covers, or what its cost will be.



