Midterm Activity-2

'''
Activity-2
'''

import numpy as np
import random
class BigMatrixMath:
  empty_list=[]
  new_list=[]
#generating a random matrix with given set of numbers and a defined size of matrix
  def addMatrix(empty_list):
    global myArray
    myArray=np.array=([])
    myArray=np.arange(-70,160,1)
    # myArray=np.random.randint(-70,160, (40,40))
    #myArray=np.linspace(-70,160,90)
    # print(type(myArray))
    print(myArray)
    empty_list=empty_list.append(myArray)
  addMatrix(empty_list)
#printing the dimensions and shape of the array
  def printDimension(myArray):
    print("-----------------------")
    print("The dimension of the array is: ", myArray.ndim)
    print("-----------------------")
    print("The shape of the array is: ", myArray.shape)
  printDimension(myArray)
#creating a random matrix with user desired rows and columns
  def addMatrix2():
    r= int(input("How many rows: "))
    c=int(input("How many columns: "))
    global myArray2
    myArray2= np.ones((r,c))
    print(myArray2)
  addMatrix2()
#calculating the dot product and assigning some exceptions
  def dotProductElgible(myArray,myArray2):
    try:
      print(myArray.dot(myArray2))
    except ValueError:
      print("Its not an appropiate matrix size for multiplication")
      print("Make sure that the number of rows in 1st matrix the number of columns in the second one")
  dotProductElgible(myArray,myArray2)
 
  import numpy as np
  add1=np.array([[1,2],[3,4]])
  add2=np.array([[5,6],[7,8]])
#combining two different array
  add1.append(add2)
  
#reformating a set of numbers in user defined form
  def reformating():
    formatarray=np.arange(12).reshape((3,4))
    print(formatarray)
  reformating()