How does round work?

조회 수: 4(최근 30일)
Tyler Murray
Tyler Murray 2016년 11월 10일
답변: Walter Roberson 2016년 11월 10일
I was trying to figure out how the function round worked. I know the format and everything, I am talking about the actual source code. I tried typing in EDIT round but only instructions came up. The only thing that I can think of is if you have a number like 3.14 you would have to convert that number to a string to determine what character the decimal point is at. From there you can take the number to the right and continue with the appropriate rounding. I just don't understand how MATLAB determines where the decimal is located. Any guesses?

답변(2개)

Steven Lord
Steven Lord 2016년 11월 10일
We do not distribute the source code for the built-in round function. If you want to see it you will need to start here.
You may be interested in the general procedures described on Wikipedia.
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Tyler Murray
Tyler Murray 2016년 11월 10일
I'm not asking for a source code, I am just asking people how they think it is programmed. Just curious.

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Walter Roberson
Walter Roberson 2016년 11월 10일
Hardware instructions. For example,

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