ans =
int16
325
x = x + .001;
int16(x)
ans =
int16
326
If you need to round a number using a rounding scheme other than the default, MATLAB provides
four rounding functions: round, fix, floor, and ceil. The fix function enables you to override the
default and round towards zero when there is a nonzero fractional part:
x = 325.9;
int16(fix(x))
ans =
int16
325
Arithmetic operations that involve both integers and floating-point always result in an integer data
type. MATLAB rounds the result, when necessary, according to the default rounding algorithm. The
example below yields an exact answer of 1426.75 which MATLAB then rounds to the next highest
integer:
int16(325) * 4.39
ans =
int16
1427
The integer conversion functions are also useful when converting other classes, such as strings, to
integers:
str = 'Hello World';
int8(str)
ans =
1×11 int8 row vector
72
101
108
108
111
32
87
111
114
108
100
If you convert a NaN value into an integer class, the result is a value of 0 in that integer class. For
example,
int32(NaN)
ans =
int32
Integers
4-3