Clf clearance, clc
dxdt=@(t,x)sin(x( 1))+x( 1)* randn;
x0 = 1; % The initial value here is 1, which can be customized.
tspan =[0 10]; % solution interval
[t,val]=ode45(dxdt,tspan,x0);
plot(t,val)
Grid open
set(gca,' xtick ',0: 1: 10,' ytick ', 1:.2:3.5)