Merge pull request #4 from GregoryNavasarkian/development

Add GUI Functionality

.gitignore

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+.idea
+__pycache__
+*.pyc

functions.py

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+import math
+from graph import Graph
+
+class Functions:
+    """
+    Class for functions
+    """
+
+    def linear(self, m, b):
+        """
+        Linear function
+        """
+        x = range(-8, 8)
+        y = [m * i + b for i in x]
+        return Graph(x, y)
+
+    def quadratic(self, a, b, c):
+        """
+        Quadratic function
+        """
+        x = range(-8, 8)
+        y = [a * i ** 2 + b * i + c for i in x]
+        return Graph(x, y)
+
+    def cubic(self, a, b, c, d):
+        """
+        Cubic function
+        """
+        x = range(-8, 8)
+        y = [a * i ** 3 + b * i ** 2 + c * i + d for i in x]
+        return Graph(x, y)
+
+    def exponential(self, a, b):
+        """
+        Exponential function
+        """
+        x = range(-4, 8)
+        y = [a * b ** i for i in x]
+        return Graph(x, y)
+
+    def logarithmic(self, b):
+        """
+        Logarithmic function
+        """
+        x = range(1, 15)
+        y = [math.log(i, b) for i in x]
+        return Graph(x, y)

graph.py

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+from matplotlib import pyplot as plt
+import math
+
+class Graph:
+	"""
+	Class for graphing functions
+	"""
+
+	def __init__(self, x, y):
+		self.x = x
+		self.y = y
+
+	def plot(self):
+		fig = plt.figure(figsize=(15, 12))
+		plt.xticks(range(min(self.x), max(self.x) + 1))
+		ax = fig.add_subplot(111)
+
+		plt.plot(self.x, self.y)
+		ax.spines['top'].set_color('none')
+		ax.spines['right'].set_color('none')
+		ax.spines['bottom'].set_position('zero')
+		ax.spines['left'].set_position('zero')
+
+		plt.scatter(0, 0)
+
+		plt.grid(True)
+		plt.show()