Syntax error in simulink
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Getting syntax error in Simulink for this expression
m*(u(1)-l*u(3)*u(3)*sin(u(2))+l*u(4)*cos(u(2)))
The equation seems correct. Can anyone explain it?
6 Comments
Shoanaliy Arul
on 12 Nov 2020
I am also getting the simular error.
Mine says:
The expression: m*(u(1) - l*u(3)*u(3)*sin(u(2)) + l*u(4)*cos(u(2))) in 'Pend_Model/Subsystem/N' has a syntax error
Answers (2)
Mark McBroom
on 14 Nov 2020
The following variables need to be defined in the MATLAB workspace:
I, g, b, m, l, M
thetadot is missing a paren. It hsould be:
1/I*(-u(1)*cos(u(3)) - u(2)*sin(u(3)))
1 Comment
Mark McBroom
on 14 Nov 2020
Note. I debugged this by cutting and pasting each of the equations into the MATLAB workspace. This gives more detailed info on undefined variables and syntax errors.
Diki
on 14 Sep 2024 at 15:49
Error:The expression: (-1/(J/(R^2)+m))*(m*g*sin(u(3))-m*u(1)*(u(4)^2)
in 'RootLocus/Ball and Steam/Fcn'
has a syntax error
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