matlab得到四个复数解.(命令为:vpa(solve('x^3-x^4=1/4'),5))
[ .83251-.31329*i]
[ .83251+.31327*i]
[ -.33251-.45326*i]
[ -.33251+.45328*i]
注明:上面的点代表0.
例.83251就是0.83251