how to have a correct array format

2016 6 10
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更新时间：2016 6 22
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I already set 'long g' as an array format at the variable editor preferences. However when i open the variable editor, the values for my first variable are correct, but the second variable contains values in short format. The second variable obtained after cat function. So does it relates to this? How should i change it. Thank you.

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Walter Roberson
Walter Roberson 2016-6-10
What is class() of the second variable?
jenny
jenny 2016-6-11
the class is double Mr Walter Roberson.
Walter Roberson
Walter Roberson 2016-6-11
Possibly there are only 5 or so significant decimal places in the data.
Can you save the data as a .mat, including the first variable and the second variable individually?
jenny
jenny 2016-6-22
yes..it's only 5 significant decimal places. Thank you Mr Walter Roberson. I think i can solve it now :)

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Azzi Abdelmalek
Azzi Abdelmalek 2016-6-10

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You can display your numbers with the format of your choice
a=12.123456789,
sprintf('%.6f',a)

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jenny
jenny 2016-6-11
The values are obtained after i run my code. First, I use sprintf to create the file name, then fscanf to read, continue with cat function to concatenate them. The values change after that.

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jenny
jenny
2016-6-10

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jenny
2016-6-22

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