Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Can someone please explain this?
As I understand it provides less precision..Is it a speed-up that one wishes to get by using it? When is it good to use? Should I use it in Matlab Coder?
Not all the computers in the world use floating-point arithmetic. In particular, many devices which have a connection to the world (such as sensors and the computers which process their data) use fixed-point representations of numbers. Some researchers into algorithms and similar matters also want to use fixed-point numbers. Matlab’s fixed-point toolbox allows its users to do fixed-point arithmetic on their PCs, and to write code targeted at execution on devices which implement it.
It’s not (necessarily) true that the Matlab fixed-point arithmetic provides less precision, it can be used to provide more precision than IEEE floating-point types.
Is it a speed up ? That’s beside the point. (Read on)
When is it good to use ? When you need to use fixed-point arithmetic. I’m not sure anyone would recommend it as a general-purpose replacement for floating-point arithmetic.
Should you use it ? Your question suggests that the answer is almost certainly ‘No, you would already know that you ought to be using fixed-point arithmetic.’