solving implicit equation with 3 variables knowing 2 of them
2 ビュー (過去 30 日間)
古いコメントを表示
Hi, I'm trying to solve the the equation shown in the attachment as you see it's function of three variables M,theta, and beta where lamda is 1.4, so given M and theta I would like to get the two corresponding values of beta. I have tried this:
syms beta;
M1= 5;
theta=20*pi/180;
gama=1.4;
eqn=tan(theta)==2*cot(beta)*((M1^2*sin(beta)^2-1)/M1^2*(gama+cos(2*beta)+2));
beta=solve(eqn,beta,'ReturnConditions',true);
% betadeg=beta*180/pi;
vpa(beta)
But I keep getting these errors
Error using sym>tomupad (line 1256)
Unable to convert 'struct' to 'sym'.
Error in sym (line 199)
S.s = tomupad(x);
Error in vpa (line 46)
ss = sym(s);
Error in untitled (line 8)
vpa(beta)
I would really appreciate your help. Thanks.
0 件のコメント
採用された回答
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Symbolic Math Toolbox についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!