Question

Create a Pascal's Triangle in Python or Atom Javascript

the program allows the user to input any # and creates the triangle from it

Answer 1

Answer:

Here I am choosing python3.6 to write code for printing the Pascal triangle for given number of rows as input.

python code (3.6 version):

nrow=int(input("Enter number of rows: ")) #Reading the Number of rows as input
arr=[] #Empty list
for i in range(nrow):
arr.append([])
arr[i].append(1) #Making the list two dimensional
for j in range(1,i):
arr[i].append(arr[i-1][j-1]+arr[i-1][j]) #Adding the values to the list row wise
if(nrow!=0):
arr[i].append(1)
print("Printing the pascal triangle for given input number of rows",nrow)
for i in range(nrow):
print(" "*(nrow-i),end=" ",sep=" ") #printing the spaces in between the numbers
for j in range(0,i+1):
print('{0:6}'.format(arr[i][j]),end=" ",sep=" ") #printing the values on screen
print()

Input and output screenshots:   

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please like if you are satisfied with the answer. Thank you