How do i put this in Matlab?

Hi, i'm just learning this and was wondering how do i put the following in matlab?

𝑥𝑎(𝑡) =𝑒^−500|𝑡|

i understant that i can put x=exp(-500) but how about the |t|?

Thank you very much in advance

Answer 1

[Scott MacKenzie]

exp(-500*abs(t))

[Abdul Basir Fathillah]

Thank you. then how do i plot it's fourier transform?

Is this way correct?

Fs = 1000;

dt = 1/Fs;% sampling interval in time

t = 0:dt:10;% time from 0s to 10s

x = exp(-500*abs(t));% signal in time domain

%x=exp(-t).*cos(100*t)

F = 0.01*fft(x); %signal in frequency domain

figure(1)

plot (abs(F));