Unable to perorm assignment
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Rf(CA+1)=(solve( Vb(CA+1) == pi *( r_cyl^2 * zw(CA) + ( za(CA) -zw(CA) )* (x^2) - ( za(CA)^3 - zw(CA)^3 )/3 ) ,x))
It says unable to perform assignment since left and right side have different elements.Can anyone help us out?
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Walter Roberson
2020-12-28
0 个投票
The equation involves x^2 so you should expect an even number of solutions not one solution.
2 个评论
AHAMMED AFZAL
2020-12-28
Walter Roberson
2020-12-28
The below code allows for a small bit of imaginary component due to numeric round-off. You might need to adust the tolerance.
tol = 1e-12;
temp = solve( Vb(CA+1) == pi *( r_cyl^2 * zw(CA) + ( za(CA) -zw(CA) )* (x^2) - ( za(CA)^3 - zw(CA)^3 )/3 ) ,x);
temp( abs(imag(temp)) > tol || real(temp) < 0) = [];
temp = real(temp);
if isempty(temp)
Rf(CA+1) = nan;
else
Rf(CA+1) = max(temp);
end
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