Can I convert a linear vector into a number?

for example how can i convert

a=[5;5;6;7;8]

to an b=55678 output?

[Stephen23]

http://web.archive.org/web/20201225182632/https://www.mathworks.com/matlabcentral/answers/317737-can-i-convert-a-linear-vector-into-a-number

Answer 1

[Andrei Bobrov]

b = str2double(sprintf('%d',a))

other way

b = 10.^(numel(a)-1:-1:0)*a

[Farhan Gony]

may be a slight correction in your second way:

b = sum(10.^(numel(a)-1:-1:0).*a)