ABCDEFGHIJKLMNOPQRST
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Usage

Alt + ↑↓→← to navigate the cursor.

Shift + ↑↓→← to expand the selection.

Enter to edit a cell. Enter again to save the cell.

Mouse navigation is not currently supported.

Functions:

Everything is JavaScript. You have access to Math.sin() and all the other stuff. Note that conditionals (like if or the ternary operator ?) and dynamic, relative addresses might break accurate recalcuations of the cells. We might fix this...

rel(dx, dy)
Reference a cell’s value relative to the current one.