Creating and Manipulating Models LTI Models LTI Models Using LTI Models in the Control System Toolbox LTI Objects Precedence Rules Viewing LTI Systems As Matrices Command Summary Creating LTI Models Transfer Function Models Zero-Pole-Gain Models State-Space Models Descriptor State-Space Models Frequency Response Data (FRD) Models Discrete-Time Models Data Retrieval LTI Properties Generic Properties Model-Specific Properties Setting LTI Properties Accessing Property Values Using get Direct Property Referencing Additional Insight into LTI Properties Model Conversion Explicit Conversion Automatic Conversion Caution About Model Conversions Time Delays Supported Functionality Specifying Input/Output Delays Specifying Delays on the Inputs or Outputs Specifying Delays in Discrete-Time Models Retrieving Information About Delays Padé Approximation of Time Delays Simulink Block for LTI Systems References Operations on LTI Models Precedence and Property Inheritance Extracting and Modifying Subsystems Referencing FRD Models Through Frequencies Referencing Channels by Name Resizing LTI Systems Arithmetic Operations Addition and Subtraction Multiplication Inversion and Related Operations Transposition Pertransposition Model Interconnection Functions Concatenation of LTI Models Feedback and Other Interconnection Functions Continuous/Discrete Conversions of LTI Models Zero-Order Hold First-Order Hold Tustin Approximation Tustin with Frequency Prewarping Matched Poles and Zeros Discretization of Systems with Delays Resampling of Discrete-Time Models References Model Analysis Tools General Model Characteristics Model Dynamics State-Space Realizations Arrays of LTI Models When to Collect a Set of Models in an LTI Array Restrictions for LTI Models Collected in an Array Where to Find Information on LTI Arrays The Concept of an LTI Array Higher Dimensional Arrays of LTI Models Dimensions, Size, and Shape of an LTI Array size and ndims reshape Building LTI Arrays Generating LTI Arrays Using rss Building LTI Arrays Using for Loops Building LTI Arrays Using the stack Function Building LTI Arrays Using tf, zpk, ss, and frd Indexing Into LTI Arrays Accessing Particular Models in an LTI Array Extracting LTI Arrays of Subsystems Reassigning Parts of an LTI Array Deleting Parts of an LTI Array Operations on LTI Arrays Example: Addition of Two LTI Arrays Dimension Requirements Special Cases for Operations on LTI Arrays Other Operations on LTI Arrays