matlab 命令solve 出错sym xsolve('-x+sinh(0.3466*log2((1+x)/(1-x)))=0',x) Error using ==> solveUnable to find closed form solution.Error in ==> sym.solve at 49[varargout{1:max(1,nargout)}] = solve(S{:});

matlab 命令solve 出错sym xsolve('-x+sinh(0.3466*log2((1+x)/(1-x)))=0',x) Error using ==> solveUnable to find closed form solution.Error in ==> sym.solve at 49[varargout{1:max(1,nargout)}] = solve(S{:}); 这个Matlab为何会出错?>> [x]=solve('(1/x^0.5)=-2*log10(5.66*10^(-4)/3.7+2.51/8000/x^0.5)')Error using ==> mupadmexError in MuPAD command:cannot differentiate equation [numeric::fsolve]Error in ==> sym.sym>sym.mupadmexnout at 2003out = mupadmex( 求解四元二次方程,用matlab用下列命令求解s=solve('x-a=-0.00352888888888888*x*(b-y)','(y-b)^2+(x-a)^2=64','y=-0.00176444444444444*x^2','b=-0.30573068145866*a-19.125454495657');ss.xs.ys.as.b结果为：s = a:[6x1 sym]b:[6x1 sym]x:[6x1 sym matlab 中的 solve怎么用 为什么我老是出错 Matlab中使用solve命令出现sym问题在相机成像的模型中需要用matlab解算一个方程组：S=solve('Xw1*r11+Yw1*r12+A(1)*Xw1*r31+A(1)*Yw1*r32+t1+A(1）*t3=0',...'Xw1*r21+Yw1*r22+B(1)*Xw1*r31+B(1)*Yw1*r32+t2+B(1)*t3=0',...'Xw2*r11+Yw2* matlab解方程式>> syms x>> s=solve('(3.4-3.2)/(3.2-2.3)=(0.85-x)/(x-0.65)');>> x=s.x用上述命令求解x,怎么提示如下内容：Error using ==> subsrefNo appropriate method,property,or field x for class sym.Error in ==> sym.subsref at 17y = matlab中创建符号变量常用的两个命令sym和ayms有什么区别 matlab运行syms x；s=solve(x^3+cos(x)) 为什么结果总是[ empty sym ]啊, matlab如何令定义的表达式为0后求解如果我已经定义了比如y=3X+1这样的表达式,然后我要令3x+1=0后求解,我试了在solve命令里令y=0会有问题,另外如果我有一个向量是sym型的，怎么才能转化为double matlab符号计算出错本人在matlab7中运行书本中如下符号计算例题clearsyms xg=sym('cos(x+sin(y(x))')dgdx=diff(g,x)matlab7显示出错如下：Error using ==> sym.sym>char2symNot a valid symbolic expression.Error in ==> sym.sym at 92S matlab solve函数解方程错在哪里输入：syms xf=sym('-x^3+x^2-1=0')v=solve(f)w=double(v)结果：Attempt to execute SCRIPT solve as a function.Error in ==> sym.solve at 49[varargout{1:max(1,nargout)}] = solve(S{:});Error in ==> solve at 3v=so matlab 用plot画曲线命令出错程序如下：syms x>> syms y>> y=1.2-0.8*erf(x/0.76)-0.3*erf((10-x)/0.76)y =6/5-4/5*erf(25/19*x)+3/10*erf(-250/19+25/19*x)>> x=0:0.01:10;>> plot(x,y);Error using ==> plotConversion to double from sym is not possib matlab 程序出错syms a b c;M1=sym('kiu');M2=sym('kog');M3=sym('lou');syms_matrix=syms_matrix=[a b c;M1,M2,M3;int2str([2 3 5])] Matlab画不出波形,f(t)=sin(2*pi*sym('f0')*t)-alpha*sin(2*pi*sym('f0')*t)*[u*(t-sym('t1'))-u*(t-sym('t2'))];sym('f0')=50,sym('t1')=0.04,sym('t2')=0.1,alpha=0.2;plot(f(t),t);grid on这个是命令里的Error in ==> one at 1f(t)=sin(2*pi*sym('f0')*t Matlab 出错 matlab出错, MATLAB中的符号矩阵问题MATLAB中输入命令 M=sym('[a,b;c,d]')输出是M=[ a,b][ c,d] matlab解方程中solve('cos(t)=(0.05913+57.*sin(t))/(0.0976*57+t*57)','t')出错了