in reply to Re: Converting bytes to floats
in thread Converting bytes to floats

It's a series of bytes. This powershell works: 
$len = $bytes.Count/8
for( $i = 0 ; $i -lt $len ; $i++) {
  [System.BitConverter]::ToDouble($bytes, $i * 8 )
}

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Re^3: Converting bytes to floats
by ikegami (Patriarch) on Apr 18, 2023 at 04:08 UTC
[reply]
[d/l]
[select]
      Did you try what I provided?

      I think it's theoretically possible that the OP did follow the advice but struck an endianness issue which, to be resolved, would presumably require either: 
      unpack "d<*", $contents
or
unpack "d>*", $contents

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      Cheers,
      Rob
[reply]
[d/l]

        If they're dealing with non-native architectures, they might have bigger problems than endianness. Unpack will only be useful if the both platforms use the same format for floats.

        I assumed they are on an x86 or x86-64, as I would have expected them to mention it if it wasn't the case.

        I also assumed that they were referring to IEEE double-precision floats. Though I did give them the information they needed for IEEE single-precision floats too via the link.

[reply]
        struck an endianness issue

        Man, this takes me back several years to when I started coding low-level stuff for my microcontroller sensor projects.

        Collecting data and flipping bits...fine, but swapping entire bytes!?! :)

[reply]
Re^3: Converting bytes to floats
by harangzsolt33 (Deacon) on Apr 17, 2023 at 23:39 UTC
    Yes, I think, what you are looking for is $number = unpack('d', $bytes);

    If $bytes hold 8 bytes, then unpack will convert that to a number.

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