MATLAB 的fcn模块中显示语法错误

问题遇到的现象和发生背景

MATLAB 的fcn模块中显示语法错误

操作环境、软件版本等信息

The expression: (u(2)-u(1)-0.001389*sin(u(5))cos(u(5))u(6)(u(1)-u(3))-0.0238(u(7)*cos(u(5))-u(6)*u(6)sin(u(5)))+(0.000694(sin(u(5)))^2-0.01268)u(4)))/0.000694(sin(u(5)))^2+0.053
in 'fcn/Subsystem1/Fcn'has a syntax error