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if I can not use sim as I can declare a variable?

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Erwin Avendaño
Erwin Avendaño 2017-11-7
编辑： per isakson 2017-11-7
I can not use symbolic math toolbox because when I make my executable guide I will not be able to use its functions, but I need to declare a variable because in the end my program will print a polynomial what can I do?
y=b0+b*(x-str2double(get(handles.edit8,'string')))+k*(x-str2double(get(handles.edit8,'string')))*(x-str2double(get(handles.edit11,'string')))+m*(x-str2double(get(handles.edit8,'string')))*(x-str2double(get(handles.edit11,'string')))*(x-str2double(get(handles.edit13,'string')))+f*(x-str2double(get(handles.edit8,'string')))*(x-str2double(get(handles.edit11,'string')))*(x-str2double(get(handles.edit13,'string')))*(x-str2double(get(handles.edit15,'string')))+i*(x-str2double(get(handles.edit8,'string')))*(x-str2double(get(handles.edit11,'string')))*(x-str2double(get(handles.edit13,'string')))*(x-str2double(get(handles.edit15,'string')))*(x-str2double(get(handles.edit17,'string')))

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