matlab 数值解法老是提示出is not a valid expression or equation.solve('(exp(-[(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^1.1)* [(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^(0.1)*(1/1.1)*(-log(0.05))^((1/1.1)-1)=0.05') 错在哪

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 21:48:32
matlab数值解法老是提示出isnotavalidexpressionorequation.solve(''(exp(-[(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]

matlab 数值解法老是提示出is not a valid expression or equation.solve('(exp(-[(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^1.1)* [(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^(0.1)*(1/1.1)*(-log(0.05))^((1/1.1)-1)=0.05') 错在哪
matlab 数值解法老是提示出is not a valid expression or equation.
solve('(exp(-[(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^1.1)* [(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^(0.1)*(1/1.1)*(-log(0.05))^((1/1.1)-1)=0.05') 错在哪

matlab 数值解法老是提示出is not a valid expression or equation.solve('(exp(-[(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^1.1)* [(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^(0.1)*(1/1.1)*(-log(0.05))^((1/1.1)-1)=0.05') 错在哪
修改为
solve('exp(-((-log(0.05))^(1/1.1)+(-log(x))^(1/1.1))^1.1)* ((-log(0.05))^(1/1.1)+(-log(x))^(1/1.1))^(0.1)*(1/1.1)*(-log(0.05))^((1/1.1)-1)=0.05')
不能使用[] 前面多了一个(
你这个式子好像无解

matlab 数值解法老是提示出is not a valid expression or equation.solve('(exp(-[(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^1.1)* [(-log(0.05))^(1/1.1)+(-log(x))^(1/1.1)]^(0.1)*(1/1.1)*(-log(0.05))^((1/1.1)-1)=0.05') 错在哪 matlab中老是提示函数定义错误, matlab 数值解法 提示出is not a valid expression or equation.syms x y z m;[x,y,z,m]=solve('-1.18x+2.10y-0.13-0.15m+0.12=0','-2.3x+1.53y+0.77z+0.04m-0.04=0','-0.9x+1.12y+0.57z-0.136m+0.17=0','x^2+y^2+z^2-0.22m^2-4.60x-3.06z+0.33m+7.55=0'); matlab,对于常微分方程怎样用数值解法求函数关系? MATLAB中[~,N] = min(abs(Z-100));有语法错误吗?仿真提示Expression or statement is incorrect--possibly unbalanced 偏微分方程组的MATLAB解法?一个带边界的偏微分方程组,如何用matlab求其数值解?最好有MATLAB程序? Matlab程序应该没错啊,但是老是运行不出来,提示:Error in conv (line 39) c = conv2(a(:),b(:),shape)程序如下N=20;n=0:N-1;x=[(n>=3)>=0];a=[1 -0.7 0];b=[2 0 -1];hn=impz(b,a,n);y=conv(x,hn);stem(y,'filled') matlab对三角函数符号积分我想算出具体的数值 matlab 中二阶常微分方程的数值解法y''-3y'+2y=1; y(0)=1; y'(0)=0; 用数值解法求y(0.5)数值解法有两个y值 -1.0696和0.7896 为什么会这样 符号解法只有一个值啊? 请问各位高手如何使用matlab解微分方程 y''(x)-y(x)sinx=0,y(0)=1,y'(0)=0;用数值解法算出 y(1)不好意思,方程是y''(x)-y'(x)sinx+yexp(x)=0 ,另外,请编写一份M文件.谢谢! matlab一阶微分方程的解法 一个关于matlab的小问题l=9.8;m=0.01;g=9.8;q=0.1;t=0:0.01:5000;theta=0.1*exp(-q*t/2)*sin(sqrt(g/l-(q^2)/4)*t);plot(t,theta);请问这个程序有问题吗?怎么老是在倒数第二步提示错误.我是想根据t算出theta的值, 请问下面的程序有错吗?matlab老是提示Error using stem (line 44) X must be same length as Y.求指教>> clf;>> N=8;>> n1=-N:-1;>> c1=-4*j*sin(n1*pi/2)/pi^2/n1.^2;>> c0=0;>> n2=1:N;>>c2=-4*j*sin(n2*pi/2)/ pi^2/n2.^2;>> cn=[c1 c0 c2];>> n=-N MATLAB求解拉普拉斯方程请问如何用surf函数绘出数值解、真解及其误差的三维立体图形. 为什么matlab总是提示‘Conversion to double from sym is not possible’?I_real=sym(zeros(15,1));I_float=zeros(15,1);I_real(1)=sym('1-exp(-1)');I_float(1)=vpa(double(I_real(1)));for n=1:14I_real(n+1)=1-n*I_real(n);I_float(n+1)=vpa(1-n*I_float(n 用matlab计算定积分式子如图,怎么用matlab编和算这个定积分?如果能直接帮我算出数值自然最好, matlab老是提示?f= | Error:Expression or statement is incomplete or incorrect.f=[67200,67200,96000,96000,64800,64800,69120,64800,57600,64800,43200,135000,92160,100000,67200,67200,96000,96000,64800,64800,69120,64800,57600,64800,43200,135000,92160,1 微分方程为什么要引进数值解法