Division int32 numbers in MATLAB R2019b

Let's see some examples:

first:

1140 / 32 

ans =

   35.6250

second:

int32(1140) / int32(32)

ans =

  int32

   36

third:

   int32(1140 / 32)

ans =

  int32

   36

So, why division with int32 numbers is not equivalent like in C++?

Answer 1

[vadim onuchin]

So, I found solution.

Need to use special division:

idivide(int32(1140), int32(32))

ans =

  int32

   35

[Bruno Luong]

Just wonder what is the risk to overload integer "/" with idivide?

Beside Image Proceesing toolbox where else does MATLAB stock uses integers?

[Steven Lord]

FYI the way MATLAB performs arithmetic on integers is documented here.

Answer 2

[Cris LaPierre]

int32 is for storing 32-bit integers. The result of the division is rounded to the closest integer value.

int32(32.5)

ans = int32 33

If you want to control how the rounding is handled, use idivide.