Number to matrix
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Hello!
I am very new to MatLab. I am wondering, what is the simplest way to convert a 5-digit number into a matrix of those 5 digits.
Thanks,
3 个评论
Image Analyst
2012-2-9
What do want as the output, numbers (integers, doubles, etc.) or characters?
student
2012-2-9
Andrei Bobrov
2012-2-10
:)
fix(rem(TheNumber*10.^-(ceil(log10(TheNumber)):-1:1),1)*10)
回答（2 个）
Walter Roberson
2012-2-9
sprintf('%d', TheNumber) - '0'
is the simplest, but not the most efficient.
Benjamin Schwabe
2012-2-9
You can do that by simply using the following code:
p = 12345; % define your number
pstr=num2str(p);
n=length(pstr);
v=zeros(n,1);
for k=1:n
v(k)=str2double(pstr(k));
end
It will work for all integer numbers. For non Integer numbers, the "." will be transformed into 'NaN'.
2 个评论
Benjamin Schwabe
2012-2-9
Maybe some more details:
I convert the number to a string with num2str, then I take each character of the string and transfort it back to a number.
If you want to have a row vector instead of a column, just replace
v=zeros(n,1); by v=zeros(1,n);
Walter Roberson
2012-2-10
When you are dealing with single digits, subtracting the character '0' is much more efficient than str2double().
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