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Subscript[x,y₁,y₂,…]

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formats as .

• In a notebook, a subscript can be created using or . moves out of the subscript position.
• Input of the form in a notebook is interpreted as Subscript[x,y].
• Subscript[x,y] formats as in StandardForm and TraditionalForm.
• In InputForm, Subscript[x,y] formats literally as Subscript[x,y].
• The baseline of Subscript[x,y] is taken to be the baseline of .
• Subscript[x,y] is normally output with in a smaller font than .

Basic Examples(3)

Generate a subscript:

To enter directly enter an:

A matrix of subscripted elements:

SuperscriptSubsuperscriptUnderscriptScriptSizeMultipliersSubscriptBox

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Design a feedback controller that will maintain the liquid level and product concentration of a continuous stirred-tank reactor at specified values. »

The affine system with states and inputs .

The objective is to maintain the outputs at , with error decay rates .

The feedback controller that will achieve the objective.

The closed-loop system.

Simulate the closed-loop system to verify the tracking.

The control effort.