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Numeration
binaire (non) signé - 2ème complément binaire
http://www.free-test-online.com/binary/signed_converter.html
https://binary-system.base-conversion.ro/convert-from-signed-binary-to-integers.php
binaire complément 1
https://ncalculators.com/digital-computation/1s-2s-complement-calculator.htm
hex - binaire - decimal
https://www.rapidtables.com/convert/number/hex-to-decimal.html
https://www.binaryhexconverter.com/hex-to-decimal-converter
virgule flotante hexa -> binaire - decimal -> virgule flotante hexa
https://www.h-schmidt.net/FloatConverter/IEEE754.html
hexadecimal complément c16 -> hexadecimal (avec soustraction)
https://atozmath.com/NumberSubComp.aspx?q=16
plein de types
https://atozmath.com/Menu/CollegeAlgebra.aspx
code grey -> decimal
https://atozmath.com/NumToBaseConv.aspx?b1=111&b2=10
code de hamming
http://www.ecs.umass.edu/ece/koren/FaultTolerantSystems/simulator/Hamming/HammingCodes.html
https://null.53bits.co.uk/uploads/programming/javascript/hamming.html
parité paire check
https://www.toolmenow.com/30/Odd-Parity-Checker
addition et soustraction hexadecimal/binaire
https://www.calculator.net/hex-calculator.html
https://www.calculator.net/binary-calculator.html
Effectuer en hexadécimal signé C16 l’opération suivante : 7A20 + B13F