# Reference cells
## 1. Reference an individual cell
To reference an individual cell, use standard spreadsheet notation. The only difference is that Quadratic allows negative axes; for negative notation, append `n` to the cell reference. Cells are, by default, relatively referenced. Use `$` notation to use absolute references.
**Examples in the table below:**
Formula Notation
(x, y) coordinate plane equivalent
(x, y) coordinate plane equivalent
A0
(0,0)
(0
A1
(0,1)
B1
(1,1)
An1
(0,-1)
nA1
(-1,1)
nAn1
(-1,-1)
## 2. Relative cell reference
Individual cells and ranges are, by default, referenced relatively. E.g. copy-pasting `A1` to the following two rows will produce `A2`, and `A3` respectively.
To reference a range of cells relatively, use the traditional spreadsheet notation that separates two distinct cells using a semicolon as a delimiter, e.g. `A1:D3`
Cells in this notation are referenced relatively, so you can drag out a cell to replicate that formula relatively across your selection.
## 3. Absolute cell references
To perform absolute cell references, use standard spreadsheet notation with `$`, for example `$A$1:D3` - `A1` will be copied absolutely and `D3` will be copied relatively if you drag to replicate.
## 3. Reference across sheets
To reference the value from another sheet, use the sheet name in quotations with an `!`.
### Single cell
To reference cell F12 in a sheet named "Sheet 1" from a sheet named "Sheet 2" use:
```formula
"Sheet 1"!F12
```
### Range of cells
To reference cells F12 to F14 in Sheet 1 from Sheet 2, use:
```
"Sheet 1"!F12:F14
```
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