parameter
Aliases:
A named quantity the reader can vary with a slider. Inside a canvas.graph it drives every expression that mentions its letter — a curve of a * x^2 bends as a moves. name: is what the slider is called in front of the reader — rich text, so Frequency $b$ sets its own maths — and without one it is labelled with its letter. The current value is derived: prose cites it with {{#a.value}}.
Writing with it:Parameters & cues
#Attributes
Also written: labelWhat the parameter is called in front of a reader. Rich text, so Frequency sets its own maths.
Keeps the parameter out of the footer: the expressions still use it, the reader cannot move it.
Default
false#Derived attributes
Computed while the element renders — read one with #id.name in attribute position or {{#id.name}} in prose, never set.
value
#Allowed in
#Examples
parameter#a(var: a; name: steepness; range: [0, 4]; step: 0.25; default: 2)
curve(f: a * x^2; domain: [-3, 3])parameter(
var: a
name: Frequency $a$
range: [-5, 5]
step: 0.5
)