Main Content


Single-precision arrays


Single-precision variables in MATLAB® are stored as 4-byte (32-bit) floating-point values of data type (class) single. For example:

y = single(10);
whos y
Name      Size            Bytes  Class     Attributes

  y         1x1                 4  single              

For more information on floating-point values, see Floating-Point Numbers.


If you have an array of a different type, such as double or int8, then you can convert that array to a single precision array by using the single function.



Y = single(X) converts the values in X to single precision.

Input Arguments

expand all

Input array, specified as a scalar, vector, matrix, or multidimensional array.

Data Types: double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char


collapse all

Convert a double-precision variable to single precision with the single function.

x = 100;
xtype = class(x)
xtype = 
y = single(x)
y = single

Extended Capabilities

GPU Code Generation
Generate CUDA® code for NVIDIA® GPUs using GPU Coder™.

Version History

Introduced before R2006a