isdouble

Determine whether input is double-precision data type

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Syntax

tf = isdouble(a)
tf = isdouble(T)

Description

example

tf = isdouble(a) returns 1 (true) when the DataType property of fi object a is double. Otherwise, it returns 0 (false).

example

tf = isdouble(T) returns 1 (true) when the DataType property of numerictype object T is double. Otherwise, it returns 0 (false).

Examples

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Open Live Script

Create a fi object and determine if its data type is double.

a = fi(pi)
a = 
    3.1416

          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 16
        FractionLength: 13

tf = isdouble(a)
tf = logical
   0


a = fi(pi,'DataType','double')
a = 
    3.1416

          DataTypeMode: Double

tf = isdouble(a)
tf = logical
   1
Open Live Script

Create a numerictype object and determine if its data type is double.

T = numerictype
T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 16
        FractionLength: 15

tf = isdouble(T)
tf = logical
   0


T = numerictype('Double')
T =


          DataTypeMode: Double

tf = isdouble(T)
tf = logical
   1

Input Arguments

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

Data Types: fi

Input numerictype object, specified as a scalar.

See Also

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Introduced in R2008a

Fixed-Point Designer Documentation

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