@PongskornSaipet/Approximating Pi

Two simple ways to approximate π by infinite series.

Files

- main.py

main.py

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```
#ประมาณค่า π = 4(1 - 1/3 + 1/5 - 1/7...)
sum = 0.0
factor = 1
for k in range(0, 10000):
sum = sum + factor/(2*k+1)
factor = factor * (-1)
print(4 * sum)
#ประมาณค่า π = sqrt(12)(1 - 1/(3x3) + 1/(5x9) - 1/(7x27) ...)
import math
sum = 0.0
factor = 1.0
for k in range(0,20):
sum = sum + factor/(2*k+1)
factor = factor * (-1/3)
print(math.sqrt(12) * sum)
```

Python 3.6.1 (default, Dec 2015, 13:05:11)
[GCC 4.8.2] on linux