Undefined function 'tf' for input arguments of type 'char'?
Asked by Lenin on 1 May 2013 at 2:50
Latest activity Commented on by Walter Roberson about 9 hours ago
Hey everyone,
I am running R2012b.
I type in: s = tf('s')
Undefined function 'tf' for input arguments of type 'char'.
can someone please help me?
Thanks so much!
Products
No products are associated with this question.
2 Answers
Answer by Arkadiy Turevskiy about 16 hours ago
tf is part of Control System Toolbox. The error message you are seeing means you do not have this product on your license. You can see which toolboxes you have by typing
ver
at the command line.
1 Comment
Walter Roberson about 9 hours ago
The Control Systems Toolbox is included with the Student Version license, but is not installed by default.
Answer by Jan Simon about 9 hours ago
Asking Google or searching in the forum is a good strategy to get fast answers. See http://www.mathworks.com/matlabcentral/answers/65972.
0 Comments
1 Comment
Direct link to this comment:
http://www.mathworks.com/matlabcentral/answers/74171#comment_146505
What do you want to do with tf('s')... transfer function? What does tf represent?