Import large numbers from text file without scientific notation

I have a text file that contains some large numbers. when i import this file with importdata(file.txt) function, it will be in scientific notation.

how can i avoid this and import in full number in digit.

Answer 1

[Walter Roberson]

Don't use importdata then. Use textscan with %d64 for signed values or %u64 for unsigned values.

... But before you go to that trouble, give the command

format long g

and ask to display your data again. If your integer values are no more than +/- 999999999999999 then you will see the integer values.

If your integer value exceed 18446744073709551615 then you will not be able to store them exactly even as uint64.

[mehdi nmt]

thansk a lot.it worked

format long

fileID = fopen(fileaddress);
C = textscan(fileID,'%u64');
fclose(fileID);
W = C{1};

Answer 2

[madhan ravi]

https://www.mathworks.com/help/matlab/ref/format.html

[mehdi nmt]

it is not working. i use format long before importing data but still it is in scientific notation.