Error in dividing the data

I have two values from workspace 

Cww=0
0
0
32
0
0
0
0
0
0

Eww=0
0
31
250
345
376
188
63
0
0

my code 

for i=1:length(Cww)
    S11(i)=100*Eww(i);
    Fw(i)=Cww(i)/S11(i);

end

after this i get ans as

Fw=0  0  0  0  0  0  0  0  0  0

i get answer in row wise ,and result is wrong getting all zeros

I tried to do separately in command window 

i get answer as 

0
0
32767
8
32767
32767
32767
32767
0
0

why i get different answers,why i get 32767value plz provide assistance

Answer 1

[Walter Roberson]

Check the class() of your data. You are probably going to find that Eww (and possibly others) is int16 data class. Use double() to convert values from int16 to double precision.