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inequality.py
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inequality.py
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# PyFunc.py
# Plotting functions
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
from numpy import *
import sys
def init():
glClearColor(1.0, 1.0, 1.0, 1.0)
gluOrtho2D(-5.0, 5.0, -5.0, 5.0)
def plotfunc():
glClear(GL_COLOR_BUFFER_BIT)
glColor3f(0.0, 0.0, 0.0)
glPointSize(1.0)
glBegin(GL_POINTS)
for x in arange(-5.0, 5.0, 0.01):
y = x*x
glColor3f(0.0, 0.0, 0.0)
glVertex2f(x,y)
for a in arange(-5.0, 5.0, 0.01):
if a < x*x:
glColor3f(0.50,0.50,0.50)
glVertex2f(x,a)
glEnd()
glColor3f(0.0, 0.0, 0.0)
glBegin(GL_LINES)
glVertex2f(-5.0, 0.0)
glVertex2f(5.0, 0.0)
glVertex2f(0.0, 5.0)
glVertex2f(0.0, -5.0)
glEnd()
glFlush()
def main():
glutInit(sys.argv)
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB)
glutInitWindowPosition(50,50)
glutInitWindowSize(400,400)
glutCreateWindow("Function Plotter")
glutDisplayFunc(plotfunc)
init()
glutMainLoop()
main()