error C2064: term does not evaluate to a function错误,求救

error C2064: term does not evaluate to a function错误,求救#include#includevoid main(){ double x1=1,x2=1,x3=1,x4=1,t1,t2,t3,t4,p1,p2,p3,p4,p5,p6,p,e,g; t1=2*(x1)+20*(x2)+40*((x1)-(x4))*((x1)-(x4))*((x1)-(x4)); t2=20*(x1)+200*(x2)+4*((x2)-2*(x3))*((x2)-2*(x3))*((x2)-2*(x3)); t3=10*(x3)-10*(x4)-8*((x2)-2*(x3))*((x2)-2*(x3))*((x2)-2*(x3)); t4=-10*(x3)+10*(x4)-40((x1)-(x4))*((x1)-(x4))*((x1)-(x4)); e=(t1)*(t1)+(t2)*(t2)+(t3)*(t3)+(t4)*(t4); g=sqrt(e); while(g>0.01) { t1=2*(x1)+20*(x2)+40*((x1)-(x4))*((x1)-(x4))*((x1)-(x4)); t2=20*(x1)+200*(x2)+4*((x2)-2*(x3))*((x2)-2*(x3))*((x2)-2*(x3)); t3=10*(x3)-10*(x4)-8*((x2)-2*(x3))*((x2)-2*(x3))*((x2)-2*(x3)); t4=-10*(x3)+10*(x4)-40((x1)-(x4))*((x1)-(x4))*((x1)-(x4)); p1=e; p2=(t1)*(120*(x1)*(x1)-240*(x1)*(x4)+2-120*(x4)*(x4))+20*(t2)+(t4)*(-120*(x1)*(x1)+240*(x1)*(x4)+120*(x4)*(x4)); p3=20*(t1)+(t2)*(12*(x2)*(x2)-48*(x2)*(x3)-48*(x3)*(x3)+200)+(t3)*(-24*(x2)*(x2)+96*(x2)*(x3)+96(x3)*(x3)); p4=(t2)*(96*(x3)*(x3)-96*(x2)*(x3)-24*(x2)*(x2))+(t3)*(-192*(x3)*(x3)+192*(x2)*(x3)+48*(x2)*(x2)+10)-10*(t4); p5=(t1)*(120*(x4)*(x4)-240*(x1)*(x4)-120*(x1)*(x1))-10*(t3)+(t4)*(-120*(x4)*(x4)+240*(x1)*(x4)+120*(x1)*(x1)+10); p6=(p2)*(t1)+(p3)*(t2)+(p4)*(t3)+(p5)*(t4); p=(p1)/(p6); x1=x1-p*(t1); x2=x2-p*(t2); x3=x3-p*(t3); x4=x4-p*(t4); e=4*(x1)*(x1)+64*(x2)*(x2); g=sqrt(e); } printf("x1=%f,x2=%f\n,x3=%f\n,x4=%f\n",x1,x2,x3,x4);}编译后c(9) : error C2064: term does not evaluate to a function c(17) : error C2064: term does not evaluate to a function c(20) : error C2064: term does not evaluate to a function是在找不出问题啊