How to display result from solve ?

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Ole
Ole 2020-2-4
评论： Ole 2020-2-4
How to display the result form solve ?
x = @(y)(y^2-4); eqn =@(y) x(y)==0; syms y; S = vpasolve(eqn(y),y)
Xr2 = [' R2 = ',num2str(S(2),16)];
disp(Xr2)
Error using num2str (line 53)
Input to num2str must be numeric.

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采纳的回答

KSSV
KSSV 2020-2-4
iwant = double(S)

更多回答（1 个）

fred ssemwogerere
what are you trying to do here?
Xr2 = [' R2 = ',num2str(S(2),16)];
This should do nicely:
Xr2 = [' R2 = ',int2str(S(2))];
disp(Xr2)

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