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Written by Harry Fairhead

Although decimal hardware is rare, there are lots of reason to want to work in decimal in software. For example, binary often doesn't give results that are the same as a human would get doing manual arithmetic. For example, if an expression results in 0.1 in decimal this isn't exactly representable in fixed point binary. However, for integer arithmetic binary gives the same result as decimal arithmetic. A better reason for needing decimal is that this is what many sensors deliver to your interface.