Cant seem to plot this correctly using python numpy and matplotlib

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter3: Assignment, Formatting, And Interactive Input
Section3.1: Assignment Operations
Problem 13E
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Cant seem to plot this correctly using python numpy and matplotlib

1. HARMONIC AND ANHARMONIC OSCILLATORS
This is a modified version of chapter 3 problem 4 in your textbook. For simple harmonic motion, the equation of
motion is given by
d²x
dt²
=-kxa
with a = 1.
Write a program that uses the Euler-Cromer method to solve for x(t). For convenience, let a = k = 1. Show
that the period of the oscillations is independent of the amplitude of the motion (this is a key feature of simple
harmonic motion!). Use several different regularly-spaced values of amplitude and show that the amplitude
and period are independent of each other.
Write a program that uses the Euler-Cromer method to solve for x(t) when k = 1 but a = 3 and plot a
representative solution for x(t). Calculate the period of the oscillation for a variety of amplitudes. Show that
the period of oscillation is now dependent on the amplitude of the motion (this is called anharmonic motion).
Describe the anharmonic behavior that you observe. Provide an intuitive, qualitative discussion of why this
behavior is observed.
Transcribed Image Text:1. HARMONIC AND ANHARMONIC OSCILLATORS This is a modified version of chapter 3 problem 4 in your textbook. For simple harmonic motion, the equation of motion is given by d²x dt² =-kxa with a = 1. Write a program that uses the Euler-Cromer method to solve for x(t). For convenience, let a = k = 1. Show that the period of the oscillations is independent of the amplitude of the motion (this is a key feature of simple harmonic motion!). Use several different regularly-spaced values of amplitude and show that the amplitude and period are independent of each other. Write a program that uses the Euler-Cromer method to solve for x(t) when k = 1 but a = 3 and plot a representative solution for x(t). Calculate the period of the oscillation for a variety of amplitudes. Show that the period of oscillation is now dependent on the amplitude of the motion (this is called anharmonic motion). Describe the anharmonic behavior that you observe. Provide an intuitive, qualitative discussion of why this behavior is observed.
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