Error: Invalid operands to binary /

How can I solve this problem?

Error: Invalid operands to binary / (have 'real_T {aka const double}' and 'const real_T * {aka const double *}')

   dx[3] = xC[11]*xC[4] - xC[10]*xC[5] + u[0]/Mass;

^

The '/' is where the error happens.

Answer 1

[Jiaming Wu]

Change this

dx[3] = xC[11]*xC[4] - xC[10]*xC[5] + u[0]/Mass;

to

dx[3] = xC[11]*xC[4] - xC[10]*xC[5] + u[0]/Mass[0];

Answer 2

[Image Analyst]

MATLAB uses round parentheses, not square brackets, to indicate array elements. Arrays also start at 1, not 0.

dx(3) = xC(12) * xC(5) - xC(11) * xC(6) + u(1)/Mass