Matlab 数值积分i=2;q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)); f=@(x)((x.^2-1).*x.^2.*i*sin(q)-x.^2.*i^2*asin(x.*sin(q))+(x.^2.*i^2-(x.^2-1).^2).*q)./(pi*(x.^2-1).^2)+1;f2=quad(f,1/(i+1),1/(i-1));Error using ==> mtimesInner matrix dimensions must ag

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 11:33:49
Matlab 数值积分i=2;q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)); f=@(x)((x.^2-1).*x.^2.*i*sin(q)-x.^2.*i^2*asin(x.*sin(q))+(x.^2.*i^2-(x.^2-1).^2).*q)./(pi*(x.^2-1).^2)+1;f2=quad(f,1/(i+1),1/(i-1));Error using ==> mtimesInner matrix dimensions must ag

Matlab 数值积分i=2;q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)); f=@(x)((x.^2-1).*x.^2.*i*sin(q)-x.^2.*i^2*asin(x.*sin(q))+(x.^2.*i^2-(x.^2-1).^2).*q)./(pi*(x.^2-1).^2)+1;f2=quad(f,1/(i+1),1/(i-1));Error using ==> mtimesInner matrix dimensions must ag
Matlab 数值积分
i=2;
q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i));
f=@(x)((x.^2-1).*x.^2.*i*sin(q)-x.^2.*i^2*asin(x.*sin(q))+(x.^2.*i^2-(x.^2-1).^2).*q)./(pi*(x.^2-1).^2)+1;
f2=quad(f,1/(i+1),1/(i-1));
Error using ==> mtimes
Inner matrix dimensions must agree.
错在哪呀.

Matlab 数值积分i=2;q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)); f=@(x)((x.^2-1).*x.^2.*i*sin(q)-x.^2.*i^2*asin(x.*sin(q))+(x.^2.*i^2-(x.^2-1).^2).*q)./(pi*(x.^2-1).^2)+1;f2=quad(f,1/(i+1),1/(i-1));Error using ==> mtimesInner matrix dimensions must ag

matlab不会把q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i));  代入f的

改为下面的即可

i=2;
f=@(x)((x.^2-1).*x.^2.*i.*sin(acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)))-x.^2.*i^2.*asin(x.*sin(acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i))))+(x.^2.*i^2-(x.^2-1).^2).*acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)))./(pi*(x.^2-1).^2)+1;
 f2=quad(f,1/(i+1),1/(i-1))


f2 =


    0.5959

matlab 求下列函数的定积分 q=1.2138*10^(-9)*((cos(pi*t/22320))^2)^1.5求出q的定积分的具体数值t的范围是44640到0麻烦帮忙写出matlab运行程序 下面积分方程怎么用matlab解 已知Q(x)=0.1,求x,要数值解 Matlab 数值积分i=2;q=acos((x.^2-1+x.^2.*i^2)./(2*x.^2.*i)); f=@(x)((x.^2-1).*x.^2.*i*sin(q)-x.^2.*i^2*asin(x.*sin(q))+(x.^2.*i^2-(x.^2-1).^2).*q)./(pi*(x.^2-1).^2)+1;f2=quad(f,1/(i+1),1/(i-1));Error using ==> mtimesInner matrix dimensions must ag MATLAB中求Y=F(X)数值积分 matlab数值积分定义被积函数的句柄函数定义遇到问题:被积函数是形如符号矩阵Q=[x,x+y,sin(x);x*y,2*x*...matlab数值积分定义被积函数的句柄函数定义遇到问题:被积函数是形如符号矩阵Q=[x,x+y,sin( 用matlab求椭圆周长,数值积分法.椭圆形式如下:x^2/4+y^2/9=1 matlab 数值积分求二重积分bb=exp(1e-3^(-2)*(x.^2+y.^2)).*exp(1i*(-0.5*1*(x.^2+y.^2)+1)).*exp(-1i*1*(x*xxx+y*yyy)/1)bb是被积函数,对x,y在-1到1上积分积分后,画出(xxx,yyy,bb)的图像 tan∠ACO=2什么意思 matlab 二重数值积分 第一重积分还有符号积分上限对如图中的函数进行积分,我试过解析解估计是没有的,就希望有数值解也好,式子中其实只有Z,X是未知数,a,b,M都是已知的数值,可以取做a=4,b=2,M= matlab自适应辛普森积分Q=quad(@(hta)myfun(hta,alf_D(j)),theta_in(i),theta_out(i));这句里面每一个变量各是什么意思?有没有大牛知道? matlab数值积分函数的应用下面的代码可运行F = @(x)1./(x.^3-2*x-5);Q = quad(F,0,2); 为何下面的代码不能运行F = @(x)exp((log(x)-1)^2);Q = quad(F,0,2); 出错信息为:Error using ==> mpowerMatrix must be square.Error in ==> @ y=1/(x^4 + x^3 + x^2 + x + 1)用matlab怎么求(1,2)区间的定积分?要数值解 matlab 求一元方程数值解请问如何用matlab求方程exp(-x)=1-x/2的数值解? matlab 使用quad函数对f1计算数值积分结果,怎么修改啊?句柄函数也创建了呀,是不是路径有问题f1=@(t)(sin(t)^2*exp(0.1*t)-0.5*abs(t))function y=sy(t)%SY y=(sin(t).^2*exp(0.1*t)-0.5*abs(t)y=(sin(t).^2*exp(0.1*t)-0.5*abs(t) q 应用数值计算方法(运用MATLAB)求解带参数的定积分以以下积分为例:∫((sin t)/t)dt t=(0->x); matlab 定义数组function D=wct(d,Q) %本程序用于计算点位中误差机及误差椭圆for i= 1 :23 temp 2k(i)=((Q(i,i)-Q(i+1,i+1))^2+4*(Q(i,i+1)^2))^(0.5);Qx(i)=(Q(i,i)+Q(i+1,i+1)+k)/2;Qy(i)=(Q(i,i)+Q(i+1,i+1)-k)/2;E(i)=d*((Qx(i))^(0.5));F(i) Matlab数值积分解区间为[0,1],方程为e^(x^2/-2) matlab quad 函数代码中的y(1) ,跟数值积分分成的n个节点有什么关系,function [Q,fcnt] = quad(funfcn,a,b,tol,trace,varargin)%QUAD Numerically evaluate integral,adaptive Simpson quadrature.% Q = QUAD(FUN,A,B) tries to approximate the