How to write e in matlab

a = 100*exp(-2*t/T)*(sin(2*pi*t/T).^2);

Is that correct?

Answer 1

[Azzi Abdelmalek]

You can check if it's correct or not, in windows command type

t=10
T=5
a = 100*exp(-2*t/T)*(sin(2*pi*t/T).^2)

[noxnoxmox]

Thanks Azzi I figure it out; sin should be sind

[Image Analyst]

sind() takes arguments in degrees, so I've never seen the term pi inside a sind(). Are you really going to do sind(2*pi*t/T)? Anyway whether you wanted sin() or sind() has nothing to do with "e". I couldn't figure out from your question whether you wanted the value e = exp(1) = 2.71828182845905, or whether you wanted to know how to raise e to some expression, like exp(-2*t/T) but you already seemed to know how to do that. So because it was ambiguous and confusing, I didn't answer.