# How to get back real value after rounding

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Med Future el 16 de Dic. de 2022
Respondida: Steven Lord el 16 de Dic. de 2022
Hello, I have the value 3.3 and 0.5, when I apply my algorithim i round the value to 3.3 to 3 and 0.5 to 1.
I want to get back the real value 3.3 and 0.5 after rounding. How can i do that in MATALAB.
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Steven Lord el 16 de Dic. de 2022
Unless you've stored those un-rounded values in a variable that still exists, you can't.
Suppose I tell you I bought two items A and B from the store, and that their prices (rounded to the nearest dollar) are each \$3. Is item A or item B more expensive? With just the information I gave you that question is impossible to answer. You'd need something else, like a peek at my receipt (which would have the original prices, and in this case would correspond to having a backup copy of the original data in a separate variable) to answer that question.
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### Más respuestas (1)

Arif Hoq el 16 de Dic. de 2022
a=[3.3 0.5];
round_vector=round(a)
round_vector = 1×2
3 1
c=a-round_vector;
origin_vector=round_vector+c
origin_vector = 1×2
3.3000 0.5000
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