How to format both left and right of the decimal place with sprintf?

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Darrian Low
Darrian Low 2025-12-7，10:39
评论： Walter Roberson 2025-12-7，18:43
I have four numbers below:
  1. 964.155
  2. 9590.43
  3. 350.76
  4. 0.00
These numbers need to be re-formatted to the following:
  1. 0964.16 (rounded up from .155)
  2. 9590.43
  3. 0350.76
  4. 0000.00
I have tried using the following code but to but to no avail.
sprintf('%4.2f, the_number)
What do I need to change in my code?

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采纳的回答

Walter Roberson
Walter Roberson 2025-12-7，11:33
Ran in:
N = [964.155
9590.43
350.76
0.00];
fprintf('%07.2f\n', N)
0964.15 9590.43 0350.76 0000.00

更多回答（1 个）

Dyuman Joshi
Dyuman Joshi 2025-12-7，11:42
编辑：Dyuman Joshi 2025-12-7，11:44
Ran in:
Here's an approach -
y = [964.155
9590.43
350.76
0.00];
You'll have to manually round up, as sprintf() doesn't do that (See this thread - https://in.mathworks.com/matlabcentral/answers/24638-round-towards-even-in-sprintf)
z = sprintf('%07.2f\n', round(y, 2))
z =
'0964.16 9590.43 0350.76 0000.00 '
As you want a total of 7 characters to be displayed (4 before the decimal, 1 - the decimal itself and 2 after the decimal), if there aren't sufficient total characters, pad them with zero - Thus the '07' in the call.

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