Question

Write Python script to calculate sum of following series :
s = (1) + (1+2) + (1+2+3) +…+ (1+2+3+…+n)

Answer 1

The python script to calculate the given series is:

def SeriesSum ( n ):

return sum ( [x*(x+1)/2 for x in range(1, n + 1) ] )

• After specifying the "n" one can calculate the sum.

• In the program, a function is defined named "SeriesSum".

• The function is having the parameter "n".

• After that, the sum is returned using list comprehension.