Unsigned vs Signed byte numbers

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The binary number 11111111 is correctly interpreted as 255 in unsigned decimal and -1 in signed decimal using two's complement. The conversion process involves inverting the bits and adding one to determine the signed value. This confirms the accuracy of the interpretation provided. The discussion clarifies the method for converting binary numbers into decimal formats. Understanding these conversions is essential for working with binary data in computing.
ckaiser813
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some one tell me if this is right

this is the binary number 11111111

unsigned = 255 (decimal)

signed = -1 (decimal)

is this correct because in my book it says to take the opposite so all 1's become 0's then you add 1 in the LSD.
 
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Assuming the machine uses twos complement - yes
 
yeah it is thanks for the help
 
Thread 'Have I solved this structural engineering equation correctly?'

Thread 'Have I solved this structural engineering equation correctly?'

Hi all, I have a structural engineering book from 1979. I am trying to follow it as best as I can. I have come to a formula that calculates the rotations in radians at the rigid joint that requires an iterative procedure. This equation comes in the form of: $$ x_i = \frac {Q_ih_i + Q_{i+1}h_{i+1}}{4K} + \frac {C}{K}x_{i-1} + \frac {C}{K}x_{i+1} $$ Where: ## Q ## is the horizontal storey shear ## h ## is the storey height ## K = (6G_i + C_i + C_{i+1}) ## ## G = \frac {I_g}{h} ## ## C...
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