Added matlab code samples.

All of these code samples currently are mis-identified in my repositories. I'm
donating them to the cause.

samples/Matlab/test_rk_par.m

@@ -0,0 +1,19 @@
+clear
+mu=0.1;
+x_0=linspace(-0.8, -0.15, 2)
+y_0=zeros(1,2)
+vx_0=linspace(-2, 2, 2)
+vy_0=zeros(1,2)
+ci=[1-mu-0.05 0 0.005 0.5290]
+t0=[0;0]
+T=[2;2]
+tspan=2
+arg1={@f;@f}
+%tspan={[0 2],[0 2]};
+arg=[mu;mu]
+[X]=arrayfun(RK4_par,t0,T,x_0',y_0',vx_0',vy_0',arg)
+% [X]=arrayfun(@f,[0;1],[ci;ci],[mu;mu]);
+%Y=RK4(@f,tspan,ci,mu);
+% figure
+% plot(Y(:,1),Y(:,2))
+% Y(end,1)