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Lab 3
1. if overview
2. else, elif
2+ Mastermind
3. while overview
4. Grades and average:
score=1
count=sum=0
while score!=0:
score = input("enter score")
if score<60:
print("you failed")
elif score<70:
print("you have a D")
elif score<80:
print("you have a C")
elif score<90:
print("you have a B")
else:
print("you have an A")
sum = sum + score
count = count + 1
print "your average score is",sum/count
5. Sentinel Value
6. Random numbers
7. Craps
VISUAL PYTHON
1. Graph: Integral
from visual.graph import *
from visual.factorial import factorial
xmax = input("enter domain range")
xmin = -xmax
myfunction = raw_input("enter function ")
def f(x): return eval(myfunction)
dx = (xmax-xmin)/512.0 # chop domain into 512 deltas
graph = gdisplay(ymin=xmin, ymax=xmax,xtitle=myfunction)
curve = gcurve(color=color.yellow)
area=0.0
#draw the function itself
for x in arange(xmin,xmax,dx):
curve.plot(pos=(x,f(x)))
#draw the area under the curve between 0 and 2: add area of each bar
funct2 = gvbars(color=color.red,delta=dx)
rate(2)
for x in arange(0,2,dx):
funct2.plot(pos=(x,f(x)))
area=area+dx*f(x)
print area
2. Projectile
from visual import *
scene.width=800
scene.autoscale=0
ball = sphere(pos=(-9,-4.5,0), color=color.blue,radius=.3)
ang = input("enter angle")
ang = math.pi/180.0*ang
mag = input("input the force")
ball.velocity = vector(cos(ang)*mag, sin(ang)*mag,0)
d=.01
while ball.pos.y>=-4.5:
rate(50)
print ball.pos.x,ball.pos.y,ball.pos.z
ball.velocity.y = ball.velocity.y-9.8*d
ball.pos = ball.pos + ball.velocity*d
3. Car
from visual import *
from visual.graph import *
time=0
scene.width=800
scene.height=100
scene.autoscale=0
graph = gdisplay(ymin=0 ,xmax=100,ymax =20,xmin=0,title="distance",height=300)
curve = gcurve(gdisply=graph,color=color.yellow)
graph2 = gdisplay(ymin=0 ,xmax=100,ymax =20,xmin=0,height=200,title="Acceleration")
curve2 = gcurve(gdisplay=graph2,color=color.cyan)
car = box(pos=(-10,0,0), color=color.red,height=.2,length=.5)
car.velocity = vector(0,0,0)
d=.01
print "rearrange windows then click on the car window to start"
scene.mouse.getclick()
while car.pos.x<10:
rate(50)
print car.pos.x,car.pos.y,car.pos.z
if scene.kb.keys:
s = scene.kb.getkey()
if s=='s': car.velocity.x=car.velocity.x+.2
if s=='a': car.velocity.x=car.velocity.x-.2
car.pos = car.pos + car.velocity*d
time=time+d
print "time is",time
curve.plot(pos =(time*10,car.pos.x+10))
curve2.plot(pos =(time*10,3))
4. Assignment
code = "rbygmc"
count=stop = 0
for a in code:
for b in code:
for c in code:
for d in code:
count = count + 1
print "My",count,"guess is",a,b,c,d
feedback = raw_input("enter the result in 1's and 0's")
if feedback == "1111":
print "right"
stop = 1
break
if stop==1:break
if stop==1:break
if stop==1:break
print "total guesses was",count
