How do I get the only the integer part?

I want to get the 1846,but I get the 1845.Why is that?

Is there any other good way?

a=1.8460e+03;

a1=fix(a);

>>

1845

Answer 1

[KSSV]

a=1.8460e+03;
round(a)

ans = 1846

[zl]

thank you