MATLAB Function Reference |

**Syntax**

**Description**

```
I = int*(X)
```

converts the elements of array `X`

into signed integers. `X`

can be any numeric object (such as a `double`

). The results of an `int*`

operation are shown in the next table.

`double`

and `single`

values are rounded to the nearest `int*`

value on conversion. A value of `X`

that is above or below the range for an integer class is mapped to one of the endpoints of the range. For example,

If `X`

is already a signed integer of the same class, then `int*`

has no effect.

You can define or overload your own methods for `int*`

(as you can for any object) by placing the appropriately named method in an `@int*`

directory within a directory on your path. Type `help datatypes`

for the names of the methods you can overload.

**Remarks**

Most operations that manipulate arrays without changing their elements are defined for integer values. Examples are `reshape`

, `size`

, the logical and relational operators, subscripted assignment, and subscripted reference.

Some arithmetic operations are defined for integer arrays on interaction with other integer arrays of the same class (e.g., where both operands are `int16`

). Examples of these operations are `+`

, `-`

, `.*`

, `./`

, `.\`

and `.^`

. If at least one operand is scalar, then `*`

, `/`

, `\`

, and `^`

are also defined. Integer arrays may also interact with scalar `double`

variables, including constants, and the result of the operation is an integer array of the same class. Integer arrays saturate on overflow in arithmetic.

A particularly efficient way to initialize a large array is by specifying the data type (i.e., class name) for the array in the `zeros`

, `ones`

, or `eye`

function. For example, to create a 100-by-100 `int64`

array initialized to zero, type

An easy way to find the range for any MATLAB integer type is to use the `intmin`

and `intmax`

functions as shown here for `int32`

:

**See Also **

`double`

, `single`

, `uint8`

, `uint16`

, `uint32`

, `uint64`

, `intmax`

, `intmin`

int2str | interp1 |

© 1994-2005 The MathWorks, Inc.