# Creating a QML App

Introduction In the previous chapter a Web App was created from scratch. Although the content of this chapter is relatively independent of the previous one, I recommend complete it first. This chapter consists of several parts. Remember that you can make suggestions to the course in the mailing list or the Telegram group.

The final goal of the chapter is to create a fully functional calculator. Initially, it will be a very basic application but it will progressively improve.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://mimecar.gitbook.io/qt-course/en/chapter-04-qml.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.