line(x1 1,y1 11,x1 11,y1 1);printf("Sorry!Nodatacanbefound\n");putimage(x,y,logoBmp2,method);labellevel->setText("Level:");

line(x1 1,y1 11,x1 11,y1 1);printf(Sorry!Nodatacanbefound );putimage(x,y,logoBmp2,method);labellevel->setText(Level:); 求line(x1 1,y2-11,x1 11,y2-1);inti,j;[prev_char2]=next_char;p1 ; a[N-i-1]=temp;printf( sortedarray: );line(x1 5,y2-15,x1 5,y1 15);fgets(str,strlen(str) 1,fp);scanf(%d, line(x1 5,y1 15,x1 15,y1 5);maxIdx=0;/*paintthecursorwhenibackup->LeftChild=temp; sp1->next=NULL;line(x1 1,y2-11,x1 11,y2-1);mc=r.x.bx;radius*AspectRatio); mathematica manipulate命令使用使用小弟初学mathematica,有些问题想请教下大哥大姐们.x =.; y =.x1 = 2; y1 = 0;x2 = 0; y2 = -1;ob = Graphics[Line[{{x1,y1},{x2,y2 - a}}],Axes -> True] /.a -> 1;eq1 = (y - y1)/(x - x1) == (y - y2 + a)/ matlab如何将一组数代入原方程的字母里?syms x1 x2 x3 x4 y1 y2 y3 y4 X1 X2 X3 X4 Y1 Y2 Y3 Y4A=[x1,y1,1,0,0,0,-x1*X1,-y1*X1;0,0,0,x1,y1,1,-x1*Y1,-y1*Y1;x2,y2,1,0,0,0,...-x2*X2,-y2*X2;0,0,0,x2,y2,1,-x2*Y2,-y2*Y2;x3,y3,1,0,0,0,-x3*X3,-y3*X3; matlab画出雪花曲线function y=koch(x1,x2,y1,y2,n)if n>1koch(x1,y1,(2*x1+x2)/3,(2*y1+y2)/3,n-1);koch((2*x1+x2)/3,(2*y1+y2)/3,(x1+x2)/2+(y1-...y2)*sqrt(3)/6,(y1+y2)/2+(x2-x1)*sqrt(3)/6,n-1);koch((x1+x2)/2+(y1-y2)*sqrt(3)/6,(y1+y2)/2+(x2-...x1)*sqr dsolve解微分方程组问题出在哪里?如果写方程如下：[x1,y1]=dsolve('Dx1=0.08*(1-(1+0.15)*x1/800+0.01*y1/900)*x1 ,Dy1=0.07*(1-(1+0.1)*y1/900+0.008*x1/800)*y1','x1(0)=2,y1(0)=10')则不能得到解；但是如果方程如下：[x1,y1]=ds vb中,scale(0,600)-(600,0)和line(x1,y1)-(x2, matlab中读txt文件中的数据,总是出现Error:Unexpected MATLAB operator,程序如下 y1=textread('1.txt');y1=y1(29:56);y1=y1';x1=ones(1,28);plot(x1,y1,'*') line(x1 15,y1 5,x2-15,y1 5);r==2)iArray[pt->LL,IDC_ARROW);chievedthetargetedsales ); 设有反比例函数y=(k+1)/x,(x1,y1)、(x2,y2)为其图像上的两点,若x1 设有反比例函数y=(k+1)/x,(x1,y1)、(x2,y2)为其图像上的两点,若x1 设反比例函数y=(k+1)/x,(x1,y1),(x2,y2)为其图像上的两点,若x1 已知点A(x1,y1),B(x2,y2)在抛物线y=2(x-1)^2+3上,且x1 MATLAB 已知3点求夹角>> x1=1;y1=1;x2=0;y2=0;x3=0;y3=3;theta=acosd(dot([x1-x2,y1-y2],[x3-x2,y3-y2])/(norm([x1-x2,y1-y2])*norm([x1-x2,y3-y2])))theta =47.8696>> x1=1;y1=1;x2=0;y2=0;x3=0;y3=3;theta=acos(dot([x1-x2,y1-y2],[x3-x2,y3-y2])/(norm([x1-x2, 设空间两个不同的单位向量a=(x1,y1,0),b=(x2,y2,0)与向量c=(1,1,1)的夹角都等于π/4,求x1+y1和x1·y1的值