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Why can't I save very small numbers in a vector?

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Joao
Joao 2014-11-9
评论： Neelima Dahal 2018-7-31
Hello!
My code is getting points like 5e-9 and i am putting these points on a vector. However after i run it i get a vector full of zeros.
Is there anyway to keep the real numbers in the vector.
Thank you

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2014-11-9
a=1e-9
fprintf('%.10f',a)

更多回答（2 个）

per isakson
per isakson 2014-11-9
编辑：per isakson 2014-11-9
The small numbers are there, but not displayed. (My guess.) Try
>> format long
>> a = [1e9,1e-9]
a =
1.0e+09 *
1.000000000000000 0.000000000000000
>> a(2)
ans =
1.000000000000000e-09
>>
Joao
Joao 2014-11-9
already solved the problem.it was something else. thank you

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