March 2025
Intermediate to advanced
428 pages
13h 25m
Italian
Content preview from Making Embedded Systems, 2a edizione
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Capitolo 12. Matematica
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Quando abbiamo analizzato il commercio delle risorse nell'ultimo capitolo, abbiamo dovuto scegliere tra RAM, spazio di codice e cicli di elaborazione. La negoziazione di queste risorse arriva solo fino a un certo punto. A volte hai bisogno di rendere il tuo codice più veloce. Non sapendo di cosa avrai bisogno per il tuo sistema, posso comunque ipotizzare che dovrai implementare un po' di matematica (perché è lì che i processori eccellono).
Meno cose fa il tuo sistema, meno risorse ha bisogno per farle. A volte confondiamo l'accuratezza, che è importante, con la precisione, che può essere eccessiva. Se riesci a quantificare l'intervallo di dati che ti aspetti e il tuo budget per gli errori, esistono alcuni metodi utili per ridurre la precisione non necessaria per tutti i tipi di algoritmi, risparmiando così RAM e cicli di elaborazione.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.