oct

Octal representation of stored integer of fi object

collapse all in page

Syntax

b = oct(a)

Description

b = oct(a) returns the stored integer of fi object a in octal format as a character vector.

Fixed-point numbers can be represented as

$r e a l - w o r l d v a l u e = 2^{- f r a c t i o n l e n g t h} \times s t o r e d i n t e g e r$

or, equivalently as

$r e a l - w o r l d v a l u e = (s l o p e \times s t o r e d i n t e g e r) + b i a s$

The stored integer is the raw binary number, in which the binary point is assumed to be at the far right of the word.

Tip

oct returns the octal representation of the stored integer of a fi object. To obtain the base-n representation of the real-world value of a fi object, use dec2base.

example

Examples

collapse all

View Stored Integer of `fi` Object in Octal Format

Open Live Script

Create a signed fi object with values -1 and 1, a word length of 8 bits, and a fraction length of 7 bits.

a = fi([-1 1], 1, 8, 7)

a = 
   -1.0000    0.9922

          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 8
        FractionLength: 7

Find the octal representation of the stored integers of fi object a.

b = oct(a)

b = 
'200   177'

Input Arguments

collapse all

`a` — Input array
`fi` object

Input array, specified as a fi object.

Data Types: fi

Version History

Introduced before R2006a

oct