matlab中 sqrt(1+(cos（x）)^2)的积分>> fun=inline('sqrt(1+(cos（x）)^2)')fun =Inline function:fun(cos,x) = sqrt(1+(cos（x）)^2)>> [R,k,T]=Romberg(fun,realmin,4,1e-6)Error using ==> inline.subsrefNot enough inputs to inline function.Error in

如何用matlab计算下列函数?我将下面这个输入matlab中后,[x,y] = solve('72.8*(1+cos(120.1/180*pi)) = 2*sqrt(21.8*x)+2*sqrt(51*y)','48.0*(1+cos(81.4/180*pi)) = 2*sqrt(29.0*x)+2*sqrt(19.0*y)'),提示我：x =[ empty sym ]y =[]请问怎么 MATLAB中solve方程组中常量被认为变量如何办?syms b_s c1 d_hh d_vvc=c1*pi/180;a_hh=(cos(c)-sqrt(b_s-(sin(c))^2))/(cos(c)+sqrt(b_s-(sin(c))^2));a_vv=(b_s-1)*((sin(c))^2-b_s*(1+(sin(c))^2))/(b_s*cos(c)+sqrt(b_s-(sin(c))^2))^2;T_hh=2*sqrt(b_ matlab中a(i)=1/sqrt(2)是什么意思 matlab中 sqrt(1+(cos（x）)^2)的积分>> fun=inline('sqrt(1+(cos（x）)^2)')fun =Inline function:fun(cos,x) = sqrt(1+(cos（x）)^2)>> [R,k,T]=Romberg(fun,realmin,4,1e-6)Error using ==> inline.subsrefNot enough inputs to inline function.Error in matlab 编写一个函数 1.我想写一个函数function [Rp,Rd,R] = aa11( a,b)syms a b Rsp Rsd RN=[sqrt(51),sqrt(21.8);sqrt(2.3),sqrt(48.5)];N1=[36.4*(1+cos(a*pi/180)),sqrt(51);25.4*(1+cos(b*pi/180)),sqrt(2.3)];N2=[sqrt(21.8),36.4*(1+cos(a*pi/180)) 求高手解答用Matlab 如何在matlab编程求这个方程组的解啊?已知a,b,c方程组72.8*(1+cos(a)）=2*(SQRT(x*21.8)+SQRT(25.5*y)+SQRT(25.5*z))50.8*(1+cos(b))=2*SQRT(x*50.8)48*(1+cos(c))=2*(SQRT(x*29)+SQRT(47*y)+SQRT(1.92*z))求x,y,z假设 用matlab求解超越方程我的方程是-0.17*cos(5.6*sqrt(a))*cos(0.47*sqrt(a))+0.163*sin(5.6*sqrt(a))*sin(0.47*sqrt(a))+0.119*sqrt(a)*sin(5.6*sqrt(a))*cos(0.47*sqrt(a))+0.104*sqrt(a)*cos(5.6*sqrt(a))*sin(0.47*sqrt(a))-(0.06*cos(5.6*sqrt(a))*sin(0 matlab解方程组结果中怎么总是有未知量啊?>> [f2,f3]=solve('l000*sin(0)+1250*sin(f2)=sqrt(1000^2+940^2)*sin(f3)+1000','l000*cos(0)+1250*cos(f2)=sqrt(1000^2+940^2)*cos(f3)+940')f2 =asin((2*4709^(1/2)*sin(f3))/125 + 4/5)pi - asin((2*4709^( MATLAB中非线性目标函数错误的解答 f=(((x(1)*4900*cos(x(2)))/(2*x(1)*70*cos(x(2))+3.14*4900))-sqrt(4900-(70-x(1))^2)*sin(x(2))/cos(x(2)))*cos(x(2))-x(3); MATLAB中说这个函数是错误的 matlab中Warning:Matrix is singular to working precision.应该怎么解决,绘制三维图,syms x yx=0:0.05:2;y=-2:0.1:2;[X,Y]=meshgrid(x,y);f=sqrt(1+X.^2+2*X*cos(Y+2*pi/3)/sqrt(1+X.^2+2*X*cos(Y)));surf(X,Y,f);我想绘制三维图形 谁能帮我看一下这个Matlab程序哪不对?超简单 clear syms x y={sqrt[1+cos(2*x)]}/[sqrt(π)-sqrt(2*x)]limit(y,x,π/2,'left') matlab fzero 命令运行时错误运用matlab编程求方程的根,程序如下：a=0:10;y=0.17*cos(5.6*sqrt(a)).*cos(0.47*sqrt(a))-0.163*sin(5.6*sqrt(a)).*sin(0.47*sqrt(a))...-0.119*sqrt(a).*sin(5.6*sqrt(a)).*cos(0.47*sqrt(a))-0.104*sqrt(a).*cos(5. y=sqrt(1-x^2)在MATLAB中哪里错了 lim(cos(sqrt(x)))^1/x Error using ==> mtimes Inner matrix dimensions must agree 用matlab求解时出现错误x=0:1:12;a=sqrt(10.08+0.5*sqrt(406.43+31.7*x.^2));b=sqrt(-10.08+0.5*sqrt(406.43+31.7*x.^2));c=1./(2*cos(0.115*sqrt(5.63i*x+20.16))); y=0;f=499800*(abs(c)).^2*x*(e 在matlab中输入表达式的问题x=0:0.01:8;表达式为：(sqrt(16*cos(x)*cos(x)+240)-4*cos(x))/2时出现错误：? Error using ==> mtimesInner matrix dimensions must agree.表达式为：(sqrt(16*cos(x)^2+240)-4*cos(x))/2时,出现错误：? Er 为什么用matlab求这个积分算不出来啊 syms x; int(sqrt(1+pi^2*cos(x).^2),0,2); Matlab出现is not a valid expression or equation.clear;syms theta x;solve('9.8*x*x/(tan(theta)*tan(theta))-(2*240000*(sqrt(7)-sqrt(4*cos(theta)+5))-196*(25+100)*(sin(theta)-sqrt(3)/2))*x/((1/3*5+100)*tan(theta))+9.8*x*x-2*10*sin(theta)*(240000*(sqrt