droots
Display transfer function on masked subsystem icon
Syntax
droots(zero,pole,gain) droots(zero,pole,gain,'z') droots(zero,pole,gain,'z-')
Description
droots( displays
the transfer function whose zero is zero, pole, gain)zero,
pole is pole, and gain is gain.
droots(and zero, pole, gain,'z') droots( expresses
the transfer function in terms of z or 1/z.zero, pole, gain,'z-')
When Simulink® draws the block icon, the initialization commands execute and the resulting equation appears on the block icon, as in the following examples:
To display a zero-pole gain transfer function, enter
droots(z, p, k)
For example, the preceding command creates this icon for these values:
z = []; p = [-1 -1]; k = 1;
If the parameters are not defined or have no values when you
create the icon, Simulink software displays three question marks
(? ? ?) in the icon. When you define parameter
values in the Mask Settings dialog box, Simulink software evaluates
the transfer function and displays the resulting equation in the icon.
See Also
disp | dpoly | port_label | text