[Octave-bug-tracker] [bug #43586] control package: tf function outputs wrong results

[Nick J.]

Follow-up Comment #4, bug #43586 (project octave):

Output from Matlab 2015a:


>> s = tf('s')

s =
 
  s
 
Continuous-time transfer function.

>> s=tf('string')
Error using tf (line 241)
Invalid syntax. The first input argument of
the "tf" command cannot be a string.
 
>> s=tf('1/(s+1)')
Error using tf (line 241)
Invalid syntax. The first input argument of
the "tf" command cannot be a string.
 
>> s=tf('a')
Error using tf (line 241)
Invalid syntax. The first input argument of
the "tf" command cannot be a string.

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