Question

IN PYTHON: Write a function that computes the outer product of two vectors WITHOUT using numpy /  inbuilt functions.

For example, the outer product of [1,2,3] x [1,2] is

outer product 2 1 2 3 2 4 6 2

Answer 1

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Code:
#!/usr/local/bin/python3

def out_prod(v1, v2):
   '''
       function which computes the vector product of two given vectors
   '''

   # setting the header here
   print('\nOuter Product')
   print('===============')
   print('i\k', end = ' ')
   for elem in v2:
       print("%5d" % elem, end = ' ')  

   # drawing the double line
   print('\n', '-'*25)
   print('\n')

   # calculating the outer product
   for elem1 in v1:
       print(elem1, end = ' ')
       for elem2 in v2:
           print("%5d" % (elem1 * elem2), end = ' ')
       print()

def main():
   out_prod([1,2,3], [1,2])
   out_prod([1,2], [1,2,3])
   out_prod([1,2,3],[1,2,3])

if __name__=='__main__':
   main()

Code screenshot:

#1 /usr/local/bin/python3 def out_prod(v1, v2): function which computes the vector product of two given vectors # setting the header here print( nOuter Product') print(' print('i\k', end-'') for elem in v2: print ("85d" elem, end- ') # drawing the double line print('\n", '-425) print( In') # calculating the outer product for elem1 in v1: print(elem1, end-'') for elem2 in v2: print ("45d" % (elen1 * elem2), end-..) print() def main(): out_prod ( [1,2,3], [1,2]) out_prod ([1,2], [1,2,3]) out_prod([1,2,3], [1,2,3]) if _name"main_' main()
Code output screenshot:

Unix Terminal> python3 outer_prod.py Outer Product ilk 1 2 2 4 Outer Product ilk 1 2 3 4 Outer Product ilk 1 2 3 2 4 6 Unix Terminal>