|
|
 | | From: | Ricardo | | Subject: | HEX to Float Single Precision | | Date: | Sun, 23 Jan 2005 22:58:34 -0500 |
|
|
 | Hello,
I'm trying to convert float number (single precision) to hex and
back, hex to float but unfortunately have a problem using hex2num
x=-1.677e-6;
y=num2hex(single(x)); this part works ok
c=hex2num(y); ; this part returns double precision
any idea how to solve this problem
thanks,
Ric
|
|
| | From: | justin bourke | | Subject: | Re: HEX to Float Single Precision | | Date: | Sun, 23 Jan 2005 23:44:44 -0500 |
|
|
| Hi Ricardo,
Matlab works in double rather than single precision unless you ask it
otherwise. Your first line creates x as a double.
To convert something to single precision, all you need to do is call:
x=single(-1.677e-6);
Although I have never seen an application where hex numbers are used
in place of decimals.
Ricardo wrote:
>
>
> Hello,
> I'm trying to convert float number (single precision) to hex and
> back, hex to float but unfortunately have a problem using hex2num
>
> x=-1.677e-6;
> y=num2hex(single(x)); this part works ok
> c=hex2num(y); ; this part returns double precision
>
> any idea how to solve this problem
> thanks,
> Ric
|
|
| | From: | Roger Stafford | | Subject: | Re: HEX to Float Single Precision | | Date: | Mon, 24 Jan 2005 07:55:18 GMT |
|
|
| In article , Ricardo
wrote:
> Hello,
> I'm trying to convert float number (single precision) to hex and
> back, hex to float but unfortunately have a problem using hex2num
>
> x=-1.677e-6;
> y=num2hex(single(x)); this part works ok
> c=hex2num(y); ; this part returns double precision
>
> any idea how to solve this problem
> thanks,
> Ric
------
do help hex2num.
It handles only double precision hex strings. If it receives an eight
character string it just appends eight more zeros to the right side of it,
which is not the way to make the conversion.
--
(Remove "xyzzy" and ".invalid" to send me email.)
Roger Stafford
|
|
|
