matlab报错?Error using ==> mpower Inputs must be a scalar and a square matrix.t=0:pi/100:2*pi;theta_1=2*pi*t;b_c=sqrt(180^2+100^2-2*180*100*cos(2*pi-theta_1));theta_4=acos((80-100*(180^2+b_c^2-100^2)/(360*b_c))/100);soe=100*sin(atan(100*sin(theta_1

我用matlab做神经网络,报错“Error using horzcat.CAT arguments dimensions are not consistent.以下是我的代码和workspace~ 为什么在matlab中输入syms x f=sym('x/(cos(x))^2') y(1)=diff(f)报错：Error using ==> diffNot enough input arguments. matlab画图报错m = 1:1:20;y = 1:1:1000;h = 225*m/(4*(y+1).^2);? Error using ==> mldivideMatrix dimensions must agree. Matlab中syms构建函数后用fsolve求解例如：syms xy=x^2-1;fsolve(y,-2)结果报错：Error using ==> lsqfcnchk at 111If FUN is a MATLAB object,it must have an feval method.Error in ==> fsolve at 184funfcn = lsqfcnchk(FUN,'fsolve',length(varar matlab 开方运算 画图clc;x=0:0.1:15;y=sqrt(x*x-4*x+20)+sqrt(x*x+9);figureplot(x,y);报错为Error using ==> mtimesInner matrix dimensions must agree.Error in ==> suanshu at 3y=sqrt(x*x-4*x+20)+sqrt(x*x+9);figure matlab中使用inline 和 nlinfit 报错!代码： myfunc=inline('a(1)/abs(x)+a(2)/sqrt(abs(x))+a(3)+a(4)*sqrt(abs(x))+a(5)*abs(x)','a','x');a=nlinfit(x,y,myfunc,[0.5 0.1 0.2 0.3 0.4]);错误：? Error using ==> nlinfit at 113Error evaluating inline matlab 矩阵相乘的问题我想定义一个函数 y=[ 1,x,x.^2 ]*[ 2;3;5 ] ,但是matlab报错.出错信息：>> x=linspace(1,10,10);>> y=[ 1,x,x.^2 ]*[ 2;3;5 ]Error using ==> mtimesInner matrix dimensions must agree.请问如何解决?这里只 Matlab画图求助 我想画一个函数的图像 函数y=3+x^2*5/(6+3*x^2),x的范围：0:0.001:50我自己尝试画了一下,老是报错Error using ==> mpowerMatrix must be square.应该是x变成向量之后,y=3+x^2*5/(6+3*x^2)表达式书写有 MATLAB中求定积分我编程如下int((-0.0342)*x^6-0.016*x^5+1.3545*x^4+0.4611*x^3-16.9306*x^2-2.9858*x+33.9888,x,-3.1416,3.1416)可是系统报错Error using ==> mpowerMatrix must be square.是怎么回事啊, Matlab中公式的问题syms x;syms z;syms y;x=1:1000;z=1:1000;y=(x.^(1/3).*1.414^(z-1).*0.4)+1;plot3(x,z,y)Error using ==> mpowerMatrix must be square.为什么总是报错,是不是点没有用好?求教这个公式中的点怎么用. matlab 报错 求指导x=0:0.0001:1;y=[1/(i*6.24375)]*[(-2.93*exp(i*1.373*x)-0.05)]*exp(-x/58.213)+[1/(i*5.747)*exp(-x/58.213)]-[1/(i*8.003)*exp(-x/13.222)*exp(i*1.08*x)];z=abs(y);plot(x,z);总是报错啊Error using ==> mtimesInner matrix dimensions matlab load 文件出错（最简单的形式）报错：Error using loadNumber of columns on line 2 of ASCII file****must be the same as previous lines.但是实际上load的内容在ultraedit中是一致的呀：5.000 7.82 3.24 10.000 9.10 4.72 15. 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 matlab几个矩阵相乘报错? Error using ==> mtimesInner matrix dimensions must agree.Error in ==> GM1_1 at 16A=inv(BT*B)*BT*Yn;这样乘不对么?B=ones(n-1,2);for i=1:(n-1) B(i,1)=-(x1(i)+x1(i+1))/2;endBT=B';for j=1:(n-1) Yn(j)=x0(j+1);end matlab运行老是报错.syms L I Rs Rr a Rg Z x yZ=(Rg*(Rs+Rr))^(0.5)a=((Rs+Rr)/Rg)^(0.5)I=1000L=2Rg=15Rs=0.026Rr=0.0001x=0:0.1:2y=-I*Z*Rs*tanh(a*L/2)*cosh(a*x)/(Rs+Rr)+I*Z*Rs*sinh(a*x)/(Rs+Rr)plot(x,y)grid on报错为：Error using ==> plotConversi Matlab积分报错 syms x y dx dy z t;global e a c;x=a*cos(t);y=a*e*(1-cos(t))*sin(t);dx=diff(x);dy=diff(y);z=sqrt(dx^2+dy^2);int(((a*cos(t)+c)^2+(a*e*(1-cos(t))*sin(t))^2)*z,t,0,pi-acos(c/a));报错为：Error using mupadmexError in MuPAD command:Ei matlab Error using ==> sym.mpowerError using ==> sym.mpowerMatrix must be square.我没用什么矩阵饿? 这matlab语句哪里错了?>> t=1:0.01:4;>> y=25*t^2-120*t+144;? Error using ==> mpowerMatrix must be square.