08-Functions and Methods Homework.py

# coding: utf-8

# # Functions and Methods Homework 
# 
# Complete the following questions:
# ____
# **Write a function that computes the volume of a sphere given its radius.**
# <p>The volume of a sphere is given as $$\frac{4}{3} πr^3$$</p>

# In[21]:


import math
def vol(rad):
    volume=1.3*(math.pi)*(3**rad)
    return volume


# In[22]:


# Check
vol(2)


# ___
# **Write a function that checks whether a number is in a given range (inclusive of high and low)**

# In[42]:


def ran_check(num,low,high):
    if num>low and num<high:
        print("{} is in the range between {} and {}".format(num,low,high) )


# In[43]:


# Check
ran_check(5,2,7)


# If you only wanted to return a boolean:

# In[45]:


def ran_bool(num,low,high):
    if num >low and num<high :
        return True
    else:
        return False
    pass


# In[47]:


ran_bool(7,1,10)


# ____
# **Write a Python function that accepts a string and calculates the number of upper case letters and lower case letters.**
# 
#     Sample String : 'Hello Mr. Rogers, how are you this fine Tuesday?'
#     Expected Output : 
#     No. of Upper case characters : 4
#     No. of Lower case Characters : 33
# 
# HINT: Two string methods that might prove useful: **.isupper()** and **.islower()**
# 
# If you feel ambitious, explore the Collections module to solve this problem!

# In[52]:


def up_low(s):
    num=0
    for letters in s:
        if letters[0].isupper():
            num=num+1
            print(num)
    pass


# In[53]:


s = 'Hello Mr. Rogers, how are you this fine Tuesday?'
up_low(s)


# ____
# **Write a Python function that takes a list and returns a new list with unique elements of the first list.**
# 
#     Sample List : [1,1,1,1,2,2,3,3,3,3,4,5]
#     Unique List : [1, 2, 3, 4, 5]

# In[9]:


def unique_list(lst):
    pass


# In[10]:


unique_list([1,1,1,1,2,2,3,3,3,3,4,5])


# ____
# **Write a Python function to multiply all the numbers in a list.**
# 
#     Sample List : [1, 2, 3, -4]
#     Expected Output : -24

# In[11]:


def multiply(numbers):  
    pass


# In[12]:


multiply([1,2,3,-4])


# ____
# **Write a Python function that checks whether a passed in string is palindrome or not.**
# 
# Note: A palindrome is word, phrase, or sequence that reads the same backward as forward, e.g., madam or nurses run.

# In[13]:


def palindrome(s):
    pass


# In[14]:


palindrome('helleh')


# ____
# #### Hard:
# 
# **Write a Python function to check whether a string is pangram or not.**
# 
#     Note : Pangrams are words or sentences containing every letter of the alphabet at least once.
#     For example : "The quick brown fox jumps over the lazy dog"
# 
# Hint: Look at the string module

# In[15]:


import string

def ispangram(str1, alphabet=string.ascii_lowercase):
    pass


# In[16]:


ispangram("The quick brown fox jumps over the lazy dog")


# In[17]:


string.ascii_lowercase


# #### Great Job!