matlab如何解方程组
syms A B P
[A,B,P]=
solve(12.56*(A-311)=-20.9*(B-311),B/311=P^0.71,933*P=A*20+B)
结果是错
[A,B,P]=solve(12.56*(A-311)=-20.9*(B-311),B/311=P^0.71,933*P=A*20+B)
Error:The expression to the left of the equals sign is not a valid target for an assignment.