Can we solve this Arithmetic Problem using Python in a more efficient way?-CodePudding

I've been thinking about making an Equation Solving program, starting off with some basic Equations first.

I have this Arithmetic progression problem here

Problem Statement: If the nth term of AP is 3n 2 find the sum up to 15 terms

This is what I have tried,

n = 1
while n <= 15:
    ap = 3 * n   2
    n  = 1

print(ap)

#OUTPUT: 47

Is there a more efficient way to calculate these types of problems using python?

I'm thinking of handling bigger equations And the answer is not quite Correct

CodePudding user response：

If you want the sum of 3n 2 for 1<=n<=15 then:

print(sum(3*n 2 for n in range(1,16)))

Output:

CodePudding user response：

you can use the closed formula for arithmetic sequence

def fn(n):
    return 3*(n*(n 1)//2)   2*n

CodePudding user response：

ap = 0 for n in range(1,16): ap = 3 * n 2 print(ap)