Wrapping of cubic equation

Hi all,

I am currently trying to wrap a cubic equation between 0 and 2pi as shown on the diagram on the right. The code to generate the cubic plot is as shown below. Appreciate if you guys can provide a solution for this.

Matlab coding for cubic Plot:

clc;
close all;
clear all;
N = 10;
a=-N:0.1:N
CubicPlot=0.0628.*a.^3;
plot(a,CubicPlot)
xlabel('SLM Position[mm]');
ylabel('Phase[rads]');
hold;
plot(10,62.93,'r.','MarkerSize',30)
plot(0,0,'r.','MarkerSize',30)
plot(-10,-62.93,'r.','MarkerSize',30);
axis([-10,10,-100,100]);

Answer 1

[Bjorn Gustavsson]

Perhaps what you want is something like this:

f_wrapped = rem(f,2*pi);

HTH