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EE Bookshelf: Using Fixed-Point Math for Embedded Applications

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While I’m less and less allergic to float where performance is concerned, it does and always will have a significant precision problem since float is inherently ‘lossy’.  When precision and performance matter with decimal values, there’s still no substitute for fixed point math.  Using Fixed-Point Math for Embedded Applications by Steve Hageman has a lot of excellent advice on getting the most out of your MCU for the least amount of work, and contains some generally excellent tips for signal capture and manipulation.


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