Re: Python homework
import random
def rollDie(num):
sides = {'One':0, 'Two':0,'Three':0,'Four':0,'Five':0,'Six':0}
for i in range(num):
rolls = int(random.randint(1, 6))
if rolls == 1:
sides['One'] += 1
if rolls == 2:
sides['Two'] += 1
if rolls == 3:
sides['Three'] += 1
if rolls == 4:
sides['Four'] += 1
if rolls == 5:
sides['Five'] += 1
if rolls == 6:
sides['Six'] += 1
return sides,max(sides,key=sides.get)
print(rollDie(50))
*** OUTPUT *
({'One': 10, 'Two': 7, 'Three': 7, 'Four': 11, 'Five': 7, 'Six': 8}, 'Four')
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Re: Round to 2 decimal places
import math
print("This program will calculate the surface area and volume of a
3-dimensional cone: ")
print()
print()
r = input("What is the radius in feet? (no negatives): ")
h = input("What is the height in feet? (no negatives): ")
r = float(r)
h = float(h)
if r > 0 and h > 0:
surfacearea = math.pi * r ** 2 + r * math.pi * (math.sqrt(r ** 2 + h ** 2))
volume = (1 / 3) * math.pi * r ** 2 * h
print()
print("Your Answer is:")
print()
print("A cone with radius", r, "\nand height of", h, "\nhas a volume of :
", round(volume,2), "\nand surface area of : ",
round(surfacearea,2), )
else:
print("No negatives allowed, try again.")
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Re: Round to 2 decimal places
The following works:
import math
print("This program will calculate the surface area and volume of a
3-dimensional cone: ")
print()
print()
r = input("What is the radius in feet? (no negatives): ")
h = input("What is the height in feet? (no negatives): ")
r = float(r)
h = float(h)
if r > 0 and h > 0:
surfacearea = math.pi * r ** 2 + r * math.pi * (math.sqrt(r ** 2 + h ** 2))
volume = (1 / 3) * math.pi * r ** 2 * h
print()
print("Your Answer is:")
print()
print("A cone with radius", r, "\nand height of", h, "\nhas a volume of :
", round(volume,2), "\nand surface area of : ",
round(surfacearea,2), )
else:
print("No negatives allowed, try again.")
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Re: Python homework
On Wednesday, December 6, 2017 at 9:28:26 PM UTC+11, D'Arcy Cain wrote: > On 12/05/2017 07:33 PM, nick.martinez2--- via Python-list wrote: > > I have a question on my homework. My homework is to write a program in > > which the computer simulates the rolling of a die 50 > > times and then prints > > (i). the most frequent side of the die > > (ii). the average die value of all rolls. > > I wrote the program so it says the most frequent number out of all the > > rolls for example (12,4,6,14,10,4) and will print out "14" instead of 4 > > like I need. > > How did you come up with 4? I come up with 3.36 with those numbers. > > > This is what I have so far: > > import random > > > > def rollDie(number): > > rolls = [0] * 6 > > For a small efficiency use "[0] * 7". See below for reason. > > > for i in range(0, number): > > roll=int(random.randint(1,6)) > > rolls[roll - 1] += 1 > > Use "rolls[roll] += 1" here. You save one arithmetic instruction each > time through the loop. Fifty times isn't much saving but imagine fifty > million. > > > return rolls > > return rolls[1:]. No matter how many rolls you only need to do the > slice once. However, you really need a lot of iterations before it > really affects the total run time. > > You need one more thing though. Create a new variable called "total" > and set it to 0.0. Add "total += roll" to your loop. your return > statement is now "return rolls[1:], total/number". > > > > > if __name__ == "__main__": > > result = rollDie(50) > > Now "result, average = ..." > > > print (result) > > print(max(result)) > > This is why you get 14. The maximum number of rolls for any one side is > 14 for side 4. Is that where you got "4"? > > -- > D'Arcy J.M. Cain > Vybe Networks Inc. > http://www.VybeNetworks.com/ > IM:da...@vex.net VoIP: sip:da...@vybenetworks.com The 'four' is the number which was rolled the highest during the 50 rolls -- https://mail.python.org/mailman/listinfo/python-list
Re: Round to 2 decimal places
On Thursday, December 7, 2017 at 12:39:38 PM UTC+11, nick martinez wrote:
> On Wednesday, December 6, 2017 at 8:13:36 PM UTC-5, ssghot...@gmail.com wrote:
> > The following works:
> >
> > import math
> >
> > print("This program will calculate the surface area and volume of a
> > 3-dimensional cone: ")
> > print()
> > print()
> > r = input("What is the radius in feet? (no negatives): ")
> > h = input("What is the height in feet? (no negatives): ")
> > r = float(r)
> > h = float(h)
> > if r > 0 and h > 0:
> >
> > surfacearea = math.pi * r ** 2 + r * math.pi * (math.sqrt(r ** 2 + h **
> > 2))
> > volume = (1 / 3) * math.pi * r ** 2 * h
> >
> > print()
> > print("Your Answer is:")
> > print()
> >
> > print("A cone with radius", r, "\nand height of", h, "\nhas a volume of
> > : ", round(volume,2), "\nand surface area of : ",
> > round(surfacearea,2), )
> > else:
> > print("No negatives allowed, try again.")
>
> Tried this but it doesn't seem to work. It still prints out all of the
> decimals
This is the output from the code above (Working):
What is the radius in feet? (no negatives): >? 2
What is the height in feet? (no negatives): >? 4
Your Answer is:
A cone with radius 2.0
and height of 4.0
has a volume of : 16.76
and surface area of : 40.67
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Re: Python homework
import random
def rollDie(num):
sides = {'One':0, 'Two':0,'Three':0,'Four':0,'Five':0,'Six':0}
for i in range(num):
rolls = int(random.randint(1, 6))
if rolls == 1:
sides['One'] += 1
if rolls == 2:
sides['Two'] += 1
if rolls == 3:
sides['Three'] += 1
if rolls == 4:
sides['Four'] += 1
if rolls == 5:
sides['Five'] += 1
if rolls == 6:
sides['Six'] += 1
return sides,max(sides,key=sides.get)
print(rollDie(50))
*** OUTPUT *
({'One': 10, 'Two': 7, 'Three': 7, 'Four': 11, 'Five': 7, 'Six': 8}, 'Four')
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