Integrating an array of numbers and the correct syntax

[RT]

I'm trying to integrate an array of numbers but I keep getting an error is this possible with the phase line and integration.  I was expecting to get an array of numbers when integrating using each number in t_list is this possible?

pkg load symbolic
end_freq=20;
alpha=1.1513
t_list=linspace(0,2*pi,22050);
syms t
phase=int(end_freq*exp(-alpha.*t),t,[t_list]);