程序报错,求改function yasuo()s=imread('shouji.jpg')d=s(:,:,1)[m,n]=size(d)a=zeros(floor(m/2),floor(n/2))for i=1:floor(m/2)for j=1:floor(n/2)a(i,j)=d(2i,2j)endendimshow(a)

matlab解微分方程组,这个程序报错,求指导如何改~function x_dot=cha721lotka_volterra(t,x)x_dot=zeros(2,1);x=zeros(2,1);x_dot=[4*x(1)-2*x(1)*x(2);x(1)*x(2)-3*x(2)];t_final=100;x0=[2,3];[t,x]=ode45('cha721lotka_volterra',[0,t_final],x0);p 程序报错,求改function yasuo()s=imread('shouji.jpg')d=s(:,:,1)[m,n]=size(d)a=zeros(floor(m/2),floor(n/2))for i=1:floor(m/2)for j=1:floor(n/2)a(i,j)=d(2i,2j)endendimshow(a) 好心人帮我弄弄这个,看看这个程序哪里错了,怎么改吧~~~谢谢呀Private Declare Function GetCursorPos Lib user32 (lpPoint As POINTAPI) As LongPrivate Declare Function WindowFromPoint Lib user32 (ByVal xPoint As Long, ByVal yPoi 关于matlab 仿真最近在做matlab 仿真 下了几组开源代码 但是没个执行时都会遇到类似于?Input argument is undefined.这样的报错 举个例子 程序如下function output_data=LT_decoder_BEC(input_data,LT_gener_matrix,deg matlab小白求教,以下plotsin程序在command窗口报错function plotsin(f1)x=linspace(0,2*pi,f1*16+1)figureplot(x,sin(f1*x))command窗口的error：function definations are not permitted in this context.另：其中x=linspace(0,2*pi,f1*16+1)表 matlab报错Function definitions are not permitted at the prompt or in scripts.麻烦帮修改程序能运行这是我的程序function []=expand(q,a,d,t,v0)R=(q*t/(a*pi/6+5000*pi))^(1/3);q=1;a=14363.384;d=0.3;t=100000;v0=3.6;for i=0:24:t/3600if (d*( matlab中lsqcurvefit函数报错问题函数程序：function f=myfun(a,x)f=a(1)*35*exp(a(2)*x+a(3)*x^2);命令：x=[11.6 12.8 14.1 14.4 13.9 13 12.4];y=[-0.3 -1 -1.48 -1.16 -1.26 -0.67 -0.73];a0=[0,0];[x,Resnorm]=lsqcurvefit(@myfun,a0,x,y)报错：E 下面这段函数哪里有错误,错在哪里,怎么改?CREATE FUNCTION [OWNER].[FUNCTION NAME] (PARAMETER LIST) RETURNS (return_type_spec) AS BEGIN (FUNCTION BODY) END matlab循环存储问题自己写了个循环画图程序 想存储时存储语句总是报错saveas(gcf,[num2str(file),'号静态测试误差曲线图_',num2str(sheet),'℃.fig']); 这句我不知道该咋改了,求大侠给个意见 源程序附上 请大家看看这个MATLAB程序哪里出了错?如何改?我的程序如下：function f=objfun(x)f=pi*(4.14*x(1)+2.5)^2*x(2)*x(3)^2/4；function [c,ceq]=confun(x)c=[6.35*10^5-x(1)^2*x(2)*x(3)^2;13432.29*(4.69-0.63*ln(x(1)))-x(1)*x(2)*x(3)^2];ceq=[ matlab中用复化梯形公式求积分一直报错> S=FSimpson(@f,0,1,8)?Error:"f" was previously used as a variable,conflicting with its use here as the name of a function. matlab求定积分报错The integrand function must return an output vector of the same length as the i>> df=@(x)exp(x)*(exp(x))'df = @(x)exp(x)*(exp(x))'>> quad(df,0,1)Error using quad (line 75)The integrand function must return an output vector of 求MATLAB高手帮忙改下程序,我的有错误啊,像画三条曲线出来的syms x1 x2 x3 t x%x1=S,x2=I,x3=R%微分表达式%x=[x1;x2;x3];function xdot=DxDt(t,x)xdot=[-0.0000003*x1.*x2-0.001*x1;0.0000003*x1.*x2-0.025*x2;0.001*x1+0.025*x2];t=[0,20 改名字程序2013 matlab化简多项式报错我写了 syms a b c d；y={[（c+d）^2+(a+b+c+d)^3+.这里就报错了,说是undefined function or method 'mrdivide' for input arguments of type 'cell'之后打算写simplify(y)求助该怎么改,具体怎么写,式子里 2011四六级 报错等级 我本应该报英语六级,但不小心报了四级,现在改不了了,请问怎样才能改吗? function cie xyz中 如何识别蓝色下面的程序怎么改?function [y_image] = extract_yellow_region(image);% extract_yellow_region:Determines the yellow regions in the picture using% the CIE-XYZ color system,and returns a black and white picture which i