在MATLAB解方程中,带参数的解求出来后,怎么画出因变量与自变量在一定...答:看起来像个平面:syms a b c;f = 'x -(5*a+6*b+7*c)=0';g='y -(2*a+b+4*c)=0';h='z -(3*a+3*b+5*c)=0';[x,y,z] = solve(f,g,h,'x','y','z');x =5*a + 6*b + 7*c y =2*a + b + 4*c z =3*a + 3*b + 5*c rand('seed',0);f...
怎么给用MATLAB画微分方程的图像?答:把下面的程序放到一个m文件里,直接运行 function [T,Y] = stest tspan = [0,5];Dy0 = 0;y0 = 30*pi/180;[T,Y] = ode45(@f,tspan,[y0,Dy0]);plot(T,Y);xlabel('t/s');ylabel('y,dy')legend('y','dy')function dy = f(t,y)dy = zeros(2,1);dy(1) = y(2);...