How to display 3 decimal places using the g format?

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Peculiar Lawrence
Peculiar Lawrence 2018 年 10 月 7 日
回答済み: Walter Roberson 2018 年 10 月 7 日
Please how do I display a number rounded to 3 decimal places (XXX.XXX) using fprintf and the g format. This is what I have now:fprintf('The roots of the cubical equation are %7.3g,%7.3g,%7.3g.\n',x1,x2,x3) but it rounds it to 2 decimal places.

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Walter Roberson
Walter Roberson 2018 年 10 月 7 日
You would use %f format. g format deals with total significant figures including before the decimal place so if you want a particular number of digits after the decimal place then it is the wrong format.

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