I can't get to diplay values in a edit box. HELP!!!

Question

Saad Rana 2020-4-2

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/514799-i-can-t-get-to-diplay-values-in-a-edit-box-help

回答： Rik 2020-4-2

Here is the full code

syms t n;
T=4
w0=2*pi/T
n=1:15
a0=(1/T)*int(1,t,0,2)
an=(2/T)*int(1*cos(n*w0*t),t,0,2)
bn=(2/T)*int(1*sin(n*w0*t),t,0,2)
set(handles.a0,'string',a0)
set(handles.an,'string',an)
set(handles.bn,'string',bn)

I want to diplay the values of a0, an and bn in edit boxes but for some reason it is giving error in these lines

set(handles.a0,'string',a0)
set(handles.an,'string',an)
set(handles.bn,'string',bn)

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Answer 1

Rik 2020-4-2

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/514799-i-can-t-get-to-diplay-values-in-a-edit-box-help#answer_423520

在 MATLAB Online 中打开

It looks like you are trying to set a numeric value as the String property. You will first have to convert your symbolic values to char.

syms t n;
T=4;
w0=2*pi/T;
n=1:15;
a0=(1/T)*int(1,t,0,2);
an=(2/T)*int(1*cos(n*w0*t),t,0,2);
bn=(2/T)*int(1*sin(n*w0*t),t,0,2);
set(handles.a0,'string',char(a0))
set(handles.an,'string',char(an))
set(handles.bn,'string',char(bn))