Marc Sandbox

The Sun is pretty big. The Moon, however, is not so big.

${\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}$

• 

make a graph title

Insert scatterplot {

 "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
 "data": {"url": "data/cars.json"},
 "transform": [{
   "calculate": "datum.Origin[0]",
   "as": "OriginInitial"
 }],
 "mark": "text",
 "encoding": {
   "x": {"field": "Horsepower", "type": "quantitative"},
   "y": {"field": "Miles_per_Gallon", "type": "quantitative"},
   "color": {"field": "Origin", "type": "nominal"},
   "text": {"field": "OriginInitial", "type": "nominal"}
 }

}