how could numbers be displayed only in 4 digits (also in answer of sprintf)

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mohammad
mohammad 2011-9-22
Does anyone know how could numbers be displayed only in 4 digits (also in answer of sprintf) [not more than 4)
a=3.78676789728978978978978789
sprintf('%d',a)= 3.786768e+000 % but i dont need this format
sprintf('%f',a)= 3.786768 % this is better but only 4 digits is needed
I need: 3.7867 or 3.786

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采纳的回答

Fangjun Jiang
Fangjun Jiang 2011-9-22
sprintf('%4.3f',pi)
doc sprintf

更多回答（1 个）

topdawgnate
topdawgnate 2011-9-22
Check out the sprintf help page
http://www.mathworks.com/help/techdoc/ref/sprintf.html
and then modify your code to this
sprintf('%0.4f',a)
-Nate

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