Plot functions from text

function Cannonball Trajectories by Elevation
x-label Distance (meters)
y-label Height (meters)
x 0 to 250

15 degrees blue: -0.001*x^2 + 0.27*x
30 degrees green: -0.002*x^2 + 0.58*x
45 degrees red: -0.003*x^2 + 0.75*x

Syntax

function Chart Title
x-label X Axis Label
y-label Y Axis Label
x: min to max

Label color: expression

Metadata Keys

Key	Description	Required
`chart`	Must be `function`	Yes
`title`	Chart title displayed above the chart	No
`x-label`	Label for the X axis	No
`y-label`	Label for the Y axis	No
`x`	X range in format `min to max`	No

Data Format

Each data line defines a named function with an optional color and a math expression:

Label color: expression

Expressions support:

Basic arithmetic: +, -, *, /
Exponents: x^2, x^3
The variable x represents the X axis value

Colors

Append a color name (lowercase) after the function name:

Parabola blue: x^2
Linear red: 2*x + 1