Control¶

Represents a standalone interactive control bound to a variable. In a Jupyter notebook or the playground, Control renders as an interactive widget (a slider, popup menu, 2D slider, or interval slider). Because the widget cannot be compared textually, the examples below use Head[...] to verify that the expression is held as a Control.

A continuous slider:

$ wo 'Head[Control[{x, 0, 1}]]'
Control

A popup menu over a discrete list of values:

$ wo 'Head[Control[{x, {a, b, c}}]]'
Control

A 2D slider, given either as a pair of corner points or via ControlType -> Slider2D:

$ wo 'Head[Control[{x, {0, 0}, {1, 1}}]]'
Control

$ wo 'Head[Control[{xy, 0, 1, ControlType -> Slider2D}]]'
Control

An interval slider:

$ wo 'Head[Control[{int, 0, 1, ControlType -> IntervalSlider}]]'
Control

An initial value and label may be given in the variable slot:

$ wo 'Head[Control[{{x, 0.5, "variable"}, 0, 1}]]'
Control