x=quadrati​c(1,-2*L2*​cos(THETA2​),s^2+L2^2​-L3^2-2*s*​L2*sin(THE​TA2)) how can i manage to solve this? its giving me an error message that matrix must be square

x=quadratic(1,-2*L2*cos(THETA2),s^2+L2^2-L3^2-2*s*L2*sin(THETA2)) how can i manage to solve this? its giving me an error message that matrix must be square

[Roger Stafford]

What is the unknown variable you are trying to solve for? Is it THETA2, s, L2, L3, or x? Also what is the meaning of "quadratic" here? Is it a function or is it some 3D array? Can you please write out the equation you are trying to solve in simpler terms?

[Image Analyst]

I agree with Roger. Try this: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer and this http://www.mathworks.com/matlabcentral/answers/728-how-do-i-write-a-good-question-for-matlab-answers

[Walter Roberson]

My speculation would be that quadratic(a,b,c) is roots([a,b,c]) or roots([c,b,a])

Answer 1

[Walter Roberson]

x=quadratic(1,-2.*L2.*cos(THETA2),s.^2+L2.^2-L3.^2-2.*s.*L2.*sin(THETA2))