MATLAB Programming

Numeric Types
Arithmetic Operations on Integer Data Types
MATLAB can perform integer arithmetic on the following types of data:
• Integers or integer arrays of the same integer data type. This yields a
result that has the same data type as the operands:
x = uint32([132 347 528]) .* uint32(75);
• Integers or integer arrays and scalar double-precision floating-point
numbers. This yields a result that has the same data type as the integer
operands:
x = uint32([132 347 528]) .* 75.49;
For all binary operations in which one operand is an array of integer data
type and the other is a scalar double, MATLAB computes the operation using
elementwise double-precision arithmetic, and then converts the result back to
the original integer data type.
For a list of the operations that support integer data types, see Nondouble
Data Type Support in the arithmetic operators reference page.
Largest and Smallest Values for Integer Data Types
For each integer data type, there is a largest and smallest number that you
can represent with that type. The table shownunder“Integers”onpage2-6
lists the largest and smallest values for each integer data type in the “Range
of Values” column.
You can also obtain these values with the intmax and intmin functions:
intmax('int8')
intmin('int8')
ans = ans =
127 -128
If you convert a number that is larger than the maximum value of an integer
data type to that type, MATLAB sets it to the maximum value. Similarly, if
you convert a number that is smaller than the minimum value of the integer
data type, MATLAB sets it to the minimum value. For example,
x = int8(300)
x = int8(-300)
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