1. Create a file name with DiffEqn.m with the following code function dx=DiffEqn(t,x) m=10; k=100; b=1; x1=x(1); x2=x(2); dx1=x2; dx2=(1/m)*(-k*x1-b*x2); dx=[dx1;dx2]; 2. Create another file for running the differential equation with all the given conditions. %using ode solver we can solve the given differential equation. [t,x]=ode45(@DiffEqn,[1,100],[10,0]); %plotting the final result t vs dx/dt plot(t,x(:,1)); Solution 1. Create a file name with DiffEqn.m with the following code function dx=DiffEqn(t,x) m=10; k=100; b=1; x1=x(1); x2=x(2); dx1=x2; dx2=(1/m)*(-k*x1-b*x2); dx=[dx1;dx2]; 2. Create another file for running the differential equation with all the given conditions. %using ode solver we can solve the given differential equation. [t,x]=ode45(@DiffEqn,[1,100],[10,0]); %plotting the final result t vs dx/dt plot(t,x(:,1));.