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How to remove decimal??

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baby
baby 2012-5-12
Hello,,
i wanna know how to remove decimal??
Example a = 2.0000
how to remove zero beside point so it will be a = 2??
please help me
  1 个评论
Oleg Komarov
Oleg Komarov 2012-5-12
Note that a is most likely not exactly 2, so the question is, do you want to "display" only the integer part or do you want to "drop" the decimal?

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采纳的回答

Oleg Komarov
Oleg Komarov 2012-5-12
To make it clear:
a = 2.00000000001
a =
2.0000
Displaying the integer part ( ans is a char), but a retains the fraction:
sprintf('%.f',a)
ans =
2
Dropping the fraction ( ans is same class as a):
fix(a)
ans =
2

更多回答（1 个）

Fabio
Fabio 2012-5-12
As Oleg says if you want to 'display' the integer part just cast to String with num2Str() function: http://www.mathworks.it/help/techdoc/ref/num2str.html
If you want to drop the decimal part you can use round() function: http://www.mathworks.it/help/techdoc/ref/round.html
or the fix() function: http://www.mathworks.it/help/techdoc/ref/fix.html

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