How to convert an array of bytes to IEEE 754 single-precision float?

I'm using Matlab R2007b.

I have an array

[65 227 216 168]

which represents the hexadecimal digits

0x41E3D8A8

that I'd like to interpret as a single-precision IEEE 754 float. The value that float takes on should be approximately 28.4808.

I'm able to use several online calculators to convert 0x41E3D8A8 to ~28.4808 but I can't seem to get that value in Matlab, starting from the array representation of that Hex value. I tried:

single(typecast(uint8([65 227 216 168]), 'uint32'))  % Returns 2.8328e+009

Answer 1

[James Tursa]

Try this:

>> swapbytes(typecast(uint8([65 227 216 168]),'single'))
ans =
  single
   28.4808

[Minh Tran]

Aha. Thanks!