heaviside function in MATLAB R2010b

Hello everybody,

I am trying to use the function 'heaviside' in MATLAB R2010b, but I get a wrong massage says that Undefined function or method 'heaviside' for input arguments of type 'double'.

Could anyone help me please.

Answer 1

[Friedrich]

Are you sure you have the Symbolic Math Toolbox installed? It looks like you don't.

Please run the ver command and look if the Symbolic Math Toolbox is listed. If not, than you haven't installed it. That would be the reason why you get the error above.

I hope I could help

[Watheq Elias]

Unfortunately, Symbolic Math Toolbox is not installed.

Thanks so much.

Answer 2

[Friedrich]

Hi,

try to run the which command to see if the function is available:

>> which -all heaviside

The output should look like this:

C:\Program Files\MATLAB\R2010b\toolbox\symbolic\symbolic\heaviside.m

If you can't locate the function try a

>> restoredefaultpath

and try again to call this function

Answer 3

[Watheq Elias]

Thanks for your help.

I have tried that but there is nothing. I have checked toolbox directory and the symbolic folder does not exist there at all.