join numbers in vector

Question

gwar 2013-7-23

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https://ww2.mathworks.cn/matlabcentral/answers/82920-join-numbers-in-vector

I have a row vector with 7 numbers, e.g. 13 30 44 12 44 23 12. I want to join all these numbers into a single number, or 13304412442312. I have not been able to find a method to do this. Can anyone please suggest a method to do this without using a for loop.

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Answer 1

kjetil87 2013-7-23

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编辑：kjetil87 2013-7-23

在 MATLAB Online 中打开

x=[13 30 44 12 44 23 12];
stringX=num2str(x);
stringX=stringX(stringX~=' '); % remove the space
x2=str2num(stringX);

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kjetil87 2013-7-23

agreed , int64 is better.

dpb 2013-7-23

Gives more dynamic range than double at cost of less flexible to other operations. Of course, OP will eventually run out of range there, too, if continues to increase the size of the vector...

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Answer 2

Azzi Abdelmalek 2013-7-23

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https://ww2.mathworks.cn/matlabcentral/answers/82920-join-numbers-in-vector#answer_92538

编辑：Azzi Abdelmalek 2013-7-23

在 MATLAB Online 中打开

a=[13 30 44 12 44 23 12]
b=strrep(num2str(a),' ','')

% This is a string, if you to get a number

b=str2num(strrep(num2str(a),' ',''))

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Answer 3

dpb 2013-7-23

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https://ww2.mathworks.cn/matlabcentral/answers/82920-join-numbers-in-vector#answer_92542

在 MATLAB Online 中打开

>> sscanf(sprintf('%d',v),'%lu')
ans =
     13304412442312
>> whos ans
Name      Size            Bytes  Class     Attributes
ans       1x1                 8  uint64              
>> sscanf(sprintf('%d',v),'%li')
ans =
     13304412442312
>> whos ans
Name      Size            Bytes  Class    Attributes
ans       1x1                 8  int64