Identifying Numeric Classes
You can check the data type of a variable x using any of these commands.
Command Operation
whos x Display the data type of x.
xType = class(x); Assign the data type of x to a variable.
isnumeric(x) Determine if x is a numeric type.
isa(x, 'integer')
isa(x, 'uint64')
isa(x, 'float')
isa(x, 'double')
isa(x, 'single')
Determine if x is the specified numeric type. (Examples for
any integer, unsigned 64-bit integer, any floating point,
double precision, and single precision are shown here).
isreal(x) Determine if x is real or complex.
isnan(x) Determine if x is Not a Number (NaN).
isinf(x) Determine if x is infinite.
isfinite(x) Determine if x is finite.
Identifying Numeric Classes