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The World and Theories
The Origins of Information Theory
A Mathematical Model
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amplitude average number band width band-limited signal behavior binary digits binary numbers bits per second block called channel capacity Chapter characters choice circuit communication theory corresponding current values cybernetics digram efficient encoding electromagnetic energy English text entropy equal equation ergodic source error example Figure finite-state machine fraction frequencies given grammatical Huffman code human hypersphere important information rate information theory input instance Johnson noise language large number linear logarithm mathematicians Maxwell's equations means measure message source molecule motion negative feedback network theory noise power noisy channel number of binary number of different Nyquist octal output particular physical piston possible prediction probability problem pulses quantum radiation radio random received represent samples sent sentence Shannon signal power simple sine wave sort sound space specify speech statistical mechanics Suppose telegraph telegraphy telephone temperature theorem tion transmission transmit uncertainty vocoder voltage write Zipf's law