Python uses triangular iterative method to calculate Pi Pi

The example in this paper describes how Python uses triangular iterations to calculate Pi Pi. Share to everyone for your reference. Specific as follows:

Method 1:

The code is as follows:

# Calculating PI Using trigonometric iterations
# fb36-20130825
Import Math
x = 1.0
y = 1.0
z = 1.0
W = 1.0
V = 1.0
U = 1.0
For I in range (30):

x = Math.sin (x) + x
y = Math.Cos (y) + y
z = Math.Cos (z) + Math.sin (z) + Z
W = Math.Cos (w)-Math.sin (W) + W
v = math.cos (v) * Math.sin (v) + V
U = Math.Cos (u)/Math.sin (U) + u
Print I
Print x, y * 2.0, Z * 4.0/3.0, W * 4.0, V * 2.0, U * 2.0
Print

Method 2:

The code is as follows:

# Calculating PI Using trigonometric iterations
# fb36-20130901
Import Math
def sin2 (x):
Return ((MATH.E * * Complex (0.0, x)-MATH.E * * Complex (0.0, x))/2.0). imag
def cos2 (x):
Return ((MATH.E * * Complex (0.0, x) + MATH.E * * Complex (0.0, x))/2.0). Real
x = 1.0
y = 1.0
x2 = 1.0
y2 = 1.0
For I in range (5):
x = Math.sin (x) + x
y = Math.Cos (y) + y
x2 = sin2 (x2) + x2
y2 = cos2 (y2) + y2
Print I, x, x2, y * 2.0, y2 * 2.0

Hopefully this article will help you with Python programming.

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