round function on complex numbers

So I have entered a complex array like this

a = [1,1,1,1; 1 -j -1 -1; 1 -1 1 -1; 1 j -1 -j]

And get output as

a =

   1.0000 + 0.0000i   1.0000 + 0.0000i   1.0000 + 0.0000i   1.0000 + 0.0000i
   1.0000 + 0.0000i   0.0000 - 1.0000i  -1.0000 + 0.0000i  -1.0000 + 0.0000i
   1.0000 + 0.0000i  -1.0000 + 0.0000i   1.0000 + 0.0000i  -1.0000 + 0.0000i
   1.0000 + 0.0000i   0.0000 + 1.0000i  -1.0000 + 0.0000i   0.0000 - 1.0000i
   

which is fine.

But I want to round this array to show complex numbers as integers. Eg 1 + 0i, 1+ i etc. How do I achieve this?

round() function doesnt seem to do anything as

   >> round(a)

ans =

   1.0000 + 0.0000i   1.0000 + 0.0000i   1.0000 + 0.0000i   1.0000 + 0.0000i
   1.0000 + 0.0000i   0.0000 - 1.0000i  -1.0000 + 0.0000i  -1.0000 + 0.0000i
   1.0000 + 0.0000i  -1.0000 + 0.0000i   1.0000 + 0.0000i  -1.0000 + 0.0000i
   1.0000 + 0.0000i   0.0000 + 1.0000i  -1.0000 + 0.0000i   0.0000 - 1.0000i

Answer 1

[Stephen23]

This has nothing to do with rounding. Either change the format, e.g.:

>> format short g
>> a = [1,1,1,1; 1 -j -1 -1; 1 -1 1 -1; 1 j -1 -j]
a =
            1                          1                          1                          1              
            1                          0 -          1i           -1                         -1              
            1                         -1                          1                         -1              
            1                          0 +          1i           -1                          0 -          1i
 

Or write your own display code using fprintf, e.g.:

>> fmt = [repmat('  %d%+di',1,size(a,2)),'\n'];
>> fprintf(fmt,a.')
  1+1i  1+1i  1+0i  -1-1i
  1-1i  1-1i  1+0i  -1+0i