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How can I format a percent using 2 digits after the decimal

42 次查看（过去 30 天）
Chris
Chris 2012-3-13
I have what should be a percentage but it comes up with several decimal places, how can I limit to 2 after the decimal

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回答（2 个）

Geoff
Geoff 2012-3-13
If you want to do it without using strings:
round(x * 100) / 100;
One reason you might want to do that is if you have a whole matrix of percentages and want to quickly show them in a sensible way, without messing with the output format for other numbers.
-g-
Oleg Komarov
Oleg Komarov 2012-3-13
sprintf
Example:
x = 0.78765645; % almost 78.8%
sprintf('%0.2f',x)
ans =
0.79
Is this the effect you're trying to accomplish?
  2 个评论
Tom
Tom 2012-3-13
If it's just for outputs in the command window, you can use
format bank
Image Analyst
Image Analyst 2012-3-13
By the way, the 0 is not necessary. I always just use sprintf('%.2f',x)

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