# Getting started
Get started with Formulas the same way as any other spreadsheet - click `=` on a cell and get started right away. Formulas are in-line by default.
In-line formulas in Quadratic
You can also optionally use multi-line Formulas for those Formulas that need to be expanded to become readable.
To open the multi-line editor either use / and select it in the cell type selection menu or use the multi-line editor button from the in-line editor as showed below.
The multi-line editor becomes useful when Formulas become more difficult to read than the space afforded by the in-line editor. Example:
```sql
IF( Z0 > 10,
IF( Z1 > 10,
IF (Z2 > 10,
AVERAGE(Z0:Z2),
"Invalid Data",
),
"Invalid Data",
),
"Invalid Data",
)
```
Cells are by default referenced relatively in Quadratic. Use $ notation to do absolute references, similar to what you'd be familiar with in traditional spreadsheets. Learn more on the [Reference cells](/formulas/reference-cells.md) page.
---
# 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://docs.quadratichq.com/formulas/getting-started.md?ask=
```
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.