A problem about using %f

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Mustafa Uysal
Mustafa Uysal on 25 May 2019
Edited: per isakson on 25 May 2019
hİ, i am beginner with matlab
i'm trying to show just first 3 digits of these numbers.
l.png
For example 150 for first one and 122 for second one. How can i do this?
Here is my code of that part
handles.popupmenu3.String{end+1} = sprintf('l(%d)= %.1f',i,l(i));

Accepted Answer

per isakson
per isakson on 25 May 2019
Edited: per isakson on 25 May 2019
Try this
%%
K = randi( [1e9,9e9], 1,9 ); % sample data
%%
cac = arrayfun( @(x) num2str(x), K, 'uni',false );
%%
str = string.empty; % or str = cell(1,0);
for ii = 1 : 9
str{end+1} = sprintf( 'l(%d)= %s', ii, cac{ii}(1:3) );
end
str([1,7])
outputs
ans =
1×2 string array
"l(1)= 655" "l(7)= 712"
>>

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