shahram moradpour strumer69

## medium_ray_tracing_code_1.py
import numpy as np
import matplotlib.pyplot as plt

width = 300
height = 200

camera = np.array([0, 0, 1])
ratio = float(width) / height
screen = (-1, 1 / ratio, 1, -1 / ratio) # left, top, right, bottom
	import numpy as np
	import matplotlib.pyplot as plt

	width = 300
	height = 200

	camera = np.array([0, 0, 1])
	ratio = float(width) / height
	screen = (-1, 1 / ratio, 1, -1 / ratio) # left, top, right, bottom