math question error with the format

I am getting an error when I use this function

x =inline('sin(2*pi*1*t).(2*exp)(-.1*t)','t');

Is there a different way I should type it? This is my first time using matlab.

Error using inlineeval (line 14)
Error in inline expression ==> sin(2*pi*1*t).(2*exp)(-.1*t)
 Not enough input arguments.

Error in inline/subsref (line 23)
    INLINE_OUT_ = inlineeval(INLINE_INPUTS_, INLINE_OBJ_.inputExpr, INLINE_OBJ_.expr);

Error in Untitled (line 3)
plot(t,x(t));

Answer 1

[Geoff Hayes]

Dena - I suspect the error is due to the use of exp where you are not providing any inputs to this function. The code should probably be written as

x =inline('sin(2*pi*1*t).*(2*exp(-.1*t))','t');

instead (note the change of the brackets and the replacing of '.' with '.*' between the two expressions - is this correct?). But do you need to use an inline function? Could the recommended anonymous function be used as an alternative?

>> f = @(t)sin(2*pi*1*t).*(2*exp(-.1*t));
>> t = 1:10;
>> result = f(t);