我编程如下int((-0.0342)*x^6-0.016*x^5+1.3545*x^4+0.4611*x^3-16.9306*x^2-2.9858*x+33.9888,x,-3.1416,3.1416)可是系统报错??? Error using ==> mpowerMatrix must be square.是怎么回事啊,求大神解答。。。。
谢谢!