Merge pull request Python-World#536 from echoaj/master

Created a sine wave using the turtle library.

Author: chavarera

.DS_Store

@@ -106,3 +106,4 @@ SR No | Project | Author
 99 | [Find IMDB Ratings](https://github.com/chavarera/python-mini-projects/tree/master/projects/Find_imdb_rating)| [Utkarsh Bajaj](https://github.com/utkarshbajaj)
 100 | [Terminal Based Hangman Game](https://github.com/chavarera/python-mini-projects/tree/master/projects/Terminal_Based_Hangman_Game)| [neohboonyee99](https://github.com/neohboonyee99)
 101 | [Diff Utility](https://github.com/Python-World/python-mini-projects/tree/master/projects/Diff_Util)| [KILLinefficiency](https://github.com/KILLinefficiency)
+102 | [Sine_Wave](https://github.com/chavarera/python-mini-projects/tree/master/projects/Sine_Wave)| [echoaj](https://github.com/echoaj)

docs/README.md

@@ -0,0 +1,21 @@
+# Script Title
+This script draws a sine wave using the built-in Python library Turtle.
+The image below demonstrates the equation of a sine wave.
+![Screenshot of the sine wave equation](equation.png)
+[source](https://www.mathsisfun.com/algebra/amplitude-period-frequency-phase-shift.html)
+
+### Prerequisites
+None
+
+### How to run the script
+1) Open a terminal
+2) Navigate to the "Sine_Wave" directory containing this python file using the command prompt.
+3) **Execute:** `python sine_wave.py`
+
+### Screenshot/GIF showing the sample use of the script
+![Screenshot of the sine_wave.py file](screenshot.png)
+
+
+## *Author Name*
+[echoaj](https://github.com/echoaj)
+

projects/Sine_Wave/README.md

@@ -0,0 +1,19 @@
+from turtle import *
+from math import *
+
+
+A = 50 # Amplitude
+B = 100 # WaveLength
+C = 0 # Horizontal Shift
+D = 0 # Vertical Shift
+
+penup()
+# As x increases y increases and decreases as it is evaluated.
+for x in range(-200, 200):
+ # Sine Wave Equation
+ y = A * sin((2 * pi / B) * (x + C)) + D
+ goto(x, y)
+ pendown()
+
+hideturtle()
+mainloop()