I wanna change the assigned value format's long in this function (value) "set(handles.edit1, 'String', value)"

%for example x=-0.134635523018792

%for gui presentation

set(handles.edit1, 'String', x)

%in gui x=-0.1346355 %7 numbers after the dot is appeared but I want to see whole numbers after the dot

Answer 1

[Jan]

It is very surprising that

set(handles.edit1, 'String', x)

shows any string at all, when x is a double value. Actually only strings and cell strings are accepted.

This shows x with 16 digits:

x = -0.134635523018792;
set(handles.edit1, 'String', sprintf('%.16g', x))

Note that it cannot be guaranteed, that you see "all" digits, because there are no accurate decimal representations for the numbers, which are store in binary format internally. See also: FAQ: Why is 0.3-0.2-0.1 ~= 0

[sermet]

dude, it doesn't work, any possible solution?

[Jan]

"It doesn't work" does not contain any details about the occurring problems. I cannot guess, what's going wrong. Therefore I suggest, that you explain the problems with all required details.

Please note, that I do not understand, how the code in the original message could show any string at all, because you set the 'String' property to the non-string x.

[Yao Li]

I noticed that he said your codes worked well just several minutes ago.

[sermet]

ok no problem, it works thank you very much

Answer 2

[Yao Li]

x='-0.134635523018792';

[Yao Li]

set(hObject, 'String', num2str(x,'%1.15f'))
Maybe this one is better.

[sermet]

it doesn't work any possible solution you could offer?

[Yao Li]

Actually, I tried the command on my computer just now and it works well. I don't know why you failed.

[sermet]

ok no problem it works thank you so much