solve not returning answers

Hi. I'm having touble solving this set of equations in Matlab.

syms a b;
eq1=2==cos(a)+(3/5)*sqrt(5)*cos(b);
eq2=0==sin(a)+(3/5)*sqrt(5)*sin(b);
eqns=[eq1, eq2];
solve(eqns,[a b])

ans = struct with fields:
    a: [2×1 sym]
    b: [2×1 sym]

The answers should be 36.9 and -26.6 degrees. But I cannot get this with solve. Any feedback is appreciated. Thanks!

Answer 1

[Sarvesh Kale]

Hi RH,

I think you have to index into the answer since the ans variable is a struct, try the following

syms a b;
eq1=2==cos(a)+(3/5)*sqrt(5)*cos(b);
eq2=0==sin(a)+(3/5)*sqrt(5)*sin(b);
eqns=[eq1, eq2];
x = solve(eqns,[a b]);
disp(x.a)

disp(x.b) % indexing into x 

I hope this solves your query

Thank you

[RH]

Thank you Sarvesh!