cs101

README.md

@@ -1 +1,294 @@
-# Python-Workshop
+# Python-Workshop
+# ## Exercises
+
+# Answer the questions or complete the tasks outlined in bold below.
+
+
+    def power(a,b):
+
+
+    # ** What is 7 to the power of 4?**
+
+
+    return a**b
+
+
+
+
+    def split_str(s):
+
+    # ** Split this string:**
+
+# 
+#     s = "Hi there Sam!"
+#     
+# **into a list. **
+
+    return s.split()
+
+
+
+    def format(planet,diameter):
+    print('The diameter of {} is {} kilometers.'.format(planet,diameter))
+
+# ** Given the variables:**
+# 
+#     planet = "Earth"
+#     diameter = 12742
+# 
+# ** Use .format() to print the following string: **
+# 
+#     The diameter of Earth is 12742 kilometers.
+
+    return None
+
+
+
+
+    def indexing(lst):
+
+
+# ** Given this nested list, use indexing to grab the word "hello" **
+
+#lst = [1,2,[3,4],[5,[100,200,['hello']],23,11],1,7]
+
+    return lst[3][1][2][0]
+#indexing(lst)
+
+
+def dictionary(d):
+
+# ** Given this nested dictionary grab the word "hello". Be prepared, this will be annoying/tricky **
+
+
+
+    return d['k1'][3]['tricky'][3]['target'][3]
+
+
+
+    def subjective():
+
+# ** What is the main difference between a tuple and a list? **
+# Tuple is ___immutable____
+
+    return immutable
+
+
+
+
+    def domainGet(email):
+
+
+    # ** Create a function that grabs the email website domain from a string in the form: **
+# 
+#     [email protected]
+#     
+# **So for example, passing "[email protected]" would return: domain.com**
+
+    return email.split('@')[1]
+
+
+
+    def findDog(st):
+    st=st.lower()
+    if (st.find('dog')==-1):
+        val ='False'
+    else:
+        val='True'
+
+
+
+# ** Create a basic function that returns True if the word 'dog' is contained in the input string. Don't worry about edge cases like a punctuation being attached to the word dog, but do account for capitalization. **
+
+    return val
+
+
+
+    def countDog(st):
+    st=st.lower()
+
+
+
+# ** Create a function that counts the number of times the word "dog" occurs in a string. Again ignore edge cases. **
+
+    return st.count('dog')
+
+
+
+
+    def lambdafunc(seq):
+
+
+    # ** Use lambda expressions and the filter() function to filter out words from a list that don't start with the letter 's'. For example:**
+# 
+# 
+# **should be filtered down to:**
+# 
+#     ['soup','salad']
+
+    return list(filter( lambda item:item[0]=='s',seq))
+
+
+
+
+    def caught_speeding(speed, is_birthday):
+    if(is_birthday==True):
+        speed=speed-5
+
+    if(speed<=60):
+            valu="No ticket"
+    elif(speed<=80):
+            valu="Small ticket"
+    else:
+            valu="Big Ticket"
+
+
+
+# **You are driving a little too fast, and a police officer stops you. Write a function
+#   to return one of 3 possible results: "No ticket", "Small ticket", or "Big Ticket". 
+#   If your speed is 60 or less, the result is "No Ticket". If speed is between 61 
+#   and 80 inclusive, the result is "Small Ticket". If speed is 81 or more, the result is "Big    Ticket". Unless it is your birthday (encoded as a boolean value in the parameters of the function) -- on your birthday, your speed can be 5 higher in all 
+#   cases. **
+
+    return valu
+
+
+
+## Numpy Exercises
+
+import numpy as np
+
+
+  def create_arr_of_fives():
+  arr=np.ones(5);
+  arr=arr*5;
+
+
+  #### Create an array of 10 fives
+
+  #### Convert your output into list 
+  #### e.g return list(arr) 
+
+  return list(arr)
+
+
+
+
+  def even_num():
+  arr=np.linspace(0,50,26)
+
+  ### Create an array of all the even integers from 10 to 50
+  ### Convert your output into list 
+  ### e.g return list(arr) 
+
+  return list(arr)
+
+
+
+  def create_matrix():
+  arr=np.arange(9)
+  arr=list(arr.reshape(3,3))
+
+  ### Create a 3x3 matrix with values ranging from 0 to 8
+  ### Convert your output into list 
+  ### e.g return (arr).tolist()
+
+  return arr
+
+
+
+
+
+
+  def linear_space():
+  l=np.linspace(0,1,20)
+  ### Create an array of 20 linearly spaced points between 0 and 1
+  ### Convert your output into list 
+  ### e.g return list(arr) 
+
+  return list(l)
+
+    def decimal_mat():
+    li=np.linspace(1,100,100).reshape(10,10)
+    li=li/100
+
+
+  ### Create an array of size 10*10 consisting of numbers from 0.01 to 1
+  ### Convert your output into list 
+  ### e.g return (arr).tolist()
+
+    return list(li)
+
+
+
+  def slices_1():
+
+  # This is a given array
+  arr = np.arange(1,26).reshape(5,5)
+  # array([[ 1,  2,  3,  4,  5],
+  #      [ 6,  7,  8,  9, 10],
+  #      [11, 12, 13, 14, 15],
+  #      [16, 17, 18, 19, 20],
+  #      [21, 22, 23, 24, 25]])
+  arr=arr[2:,1:]
+
+  # Write a code to slice this given array
+  ### Convert your output into list 
+  ### e.g return (arr).tolist()
+  # array([[12, 13, 14, 15],
+  #      [17, 18, 19, 20],
+  #      [22, 23, 24, 25]])
+
+  return list(arr)
+
+
+
+  def slices_2():
+
+  # This is a given array
+  arr = np.arange(1,26).reshape(5,5)
+
+  # array([[ 1,  2,  3,  4,  5],
+  #      [ 6,  7,  8,  9, 10],
+  #      [11, 12, 13, 14, 15],
+  #      [16, 17, 18, 19, 20],
+  #      [21, 22, 23, 24, 25]])
+  arr=arr[:3,1]
+
+
+  # Write a code to slice this given array
+  ### Convert your output into list 
+  ### e.g return (arr).tolist()
+  # array([[ 2],
+  #      [ 7],
+  #      [12]])
+
+  return list(arr)
+
+
+
+
+  def slices_3():
+
+  # This is a given array
+  arr = np.arange(1,26).reshape(5,5)
+
+  # array([[ 1,  2,  3,  4,  5],
+  #      [ 6,  7,  8,  9, 10],
+  #      [11, 12, 13, 14, 15],
+  #      [16, 17, 18, 19, 20],
+  #      [21, 22, 23, 24, 25]])
+  arr=arr[3:,:]
+
+
+  # Write a code to slice this given array
+  ### Convert your output into list 
+  ### e.g return (arr).tolist()
+  # array([[16, 17, 18, 19, 20],
+  #      [21, 22, 23, 24, 25]])
+
+  return list(arr)
+
+
+
+# Great job!