How can I show the 4-byte hex representation of a single precison float value?

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glentall
glentall 2019-7-24
评论： Walter Roberson 2021-8-9
Is there a way to show/display the 4-byte hex and/or binary representation of a single precision float value in Matlab and/or Simulink?

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James Tursa
James Tursa 2019-7-24
编辑：James Tursa 2019-7-24
s = your single float number
h = dec2hex(typecast(s,'uint32'),8)
And the reverse is
s = typecast(uint32(hex2dec(h)),'single')
If you want binary then see the dec2bin( ) and bin2dec( ) functions.
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Walter Roberson
Walter Roberson 2021-8-9
Ran in:
s = rand('single')
s = single 0.7387
dec2hex(typecast(s,'uint32'),8)
ans = '3F3D1D5B'
num2hex(s)
ans = '3f3d1d5b'
In my opinion, numhex() is better for this purpose, as it is shorter and does not require as much technical knowledge.

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Walter Roberson
Walter Roberson 2019-7-24
num2hex() gives a single call for this.

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