clear x=12345 y=0 do while x>0 y=y+x%10 x=int(x/10) enddo y 内存变量y=15我想知道求余数那里是怎么回事

clear x=12345 y=0 do while x>0 y=y+x%10 x=int(x/10) enddo y 内存变量y=15我想知道求余数那里是怎么回事 一个mathematica程序添加作图语句Clear[x,y,n,h,S1,S2,S3,S4,i];y[1] = 0; h = 0.1;n = 100Do[x[i] = 1.0 + (i - 1)*h,{i,1,n + 1}]f[x_,y_] = 2.5-0.8 y;Do[{S1 = f[x[i],y[i]],S2 = f[x[i] + h/2,y[i] + h*S1/2],S3 = f[x[i] + h/2,y[i] + h*S2/2],S4 = f[x clear; x=0:0.1:pi/3; y=exp(-0.5*x)*sin(x+pi/6); trapz(x,y) 在matlab中运行不了! 怎么解这题 clear i=1 j=0 do while i 在下面的mathematica程序中添加什么样的语句输出数据Clear[x,y,n,t,a,b,c,d,i];y[1]=0;t=0.1;n=60;Do[x[i]=0+(i-1)*t,{i,1,n+1}]f[x_,y_]=0.1-1.2y;Do[{a=f[x[i],y[i]],b=f[x[i]+t/2,y[i]+t*a/2],c=f[x[i]+t/2,y[i]+t*b/2],d=f[x[i]+t,y[i]+t*c],y[i 在同一平面中的两个窗口分别画出心形线和马鞍面clear[x,y,z]=sphere(200);i=find(x.^2+y.^2-x>=0&x.^2+y.^2+z.^2 急用matlab求二元三次方程组及程序代码!方程：-100/x^2/y+17/40/x^3/y^2+7505627081381631/9007199254740992/x^2=0,-100/x/y^2+17/40/x^2/y^3=0我输入 clear;>> syms x y;>> [x,y]=solve('-100/x^2/y+17/40/x^3/y^2+7505627081381631/900719925474 如何求这个二元三次方程组精确解?用matlab他说没有显式解.方程：-100/x^2/y+17/40/x^3/y^2+7505627081381631/9007199254740992/x^2=0,-100/x/y^2+17/40/x^2/y^3=0我输入 clear;>> syms x y;>> [x,y]=solve('-100/x^2/y+17/40/x^3/y^2+7505 求问y=2.16*x/(1+1.16*x),matlab的编程怎么写为什么代码这样子写：clear allclcx=linspace(0,1,100);y=2.16*x4/(1+1.16*x);ezplot(x1,y);不对啊 MATLAB的一个小问题源程序：clear %y=exp(x.*sin(x));x=0;dx=1;y=0;for ii=1:20x_new=x+dx;y_new=exp(x_new*sin(x_new));if y_new x=0 y=0 do while x clear set talk off x=10 y=-3 for n=29+x to x ;ste p y endfor n return matlab编程,计算多值的y=e^x,clc;clear;x=linspace(0,5,10);ep(1)=1;for i=1:5ep(i+1)=x.^(i)/factorial(i);endy=sum(ep);disp(y);plot(x,y,'*p');xlabel('x');ylabel('y');title('the function of y=e^x');legend('y=e^x'); matlab switch case 不太会用,程序一直有错.clc;clear;x=0:0.1*pi:2*pi;a=input('name:')switch acase 'sin'y=sin(x);plot(x,y)case 'cos'y=cos(x);plot(x,y)case 'tan'y=tan(x);plot(x,y)otherwisebreak;end VFP：set talk off clear s=0 for m=3 to 7 n=2 do while n if s=1+2+3+4+5 clear s=0 a=1 do while a if s=1+2+3+4+5 clear s=0 a=1 do while a SET TALK OFF CLEAR STORE 0 TO S,T,P FOR K=1 TO 10 DO ...