i have a script that gives my figure(1) that graphs a cos wave over 5 sec then i need to section out the first second and have it display in figure(2). when i run my script i get the first figure and the second only displays the x,y cooridinates.

i think i have a problem in the way i sectioned the original vector.

my script looks like this:

`clear;clc;close all;% create vector of time values`

t = 0.0 : 0.01 : 5.0;% evaluate function at time points

f = 53*cos(104*pi*t).*exp(-1.35*t);% plot t vs f(t)

figure(1) plot(t,f);xlabel('t(sec)');ylabel('f(t)');%reindex t to exclude the last four seconds

t = 0.0 : 0.01 : 5;%plot t vs f(t)

figure(2)plot(t,f(t));xlabel('t(sec)');ylabel('f(t)');

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