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May 31, 2023CodeCatch
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Remove i'th character

Nov 19, 2022CodeCatch

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# Python code to demonstrate
# method to remove i'th character
# Naive Method
# Initializing String
test_str = "CodeCatch"
# Printing original string
print ("The original string is : " + test_str)
# Removing char at pos 3
# using loop
new_str = ""
for i in range(len(test_str)):
if i != 2:
new_str = new_str + test_str[i]
# Printing string after removal
print ("The string after removal of i'th character : " + new_str)

Hello World

Sep 9, 2023AustinLeath

0 likes • 19 views

print("test")

Plotting Fibonacci

Nov 19, 2022CodeCatch

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# Python program for Plotting Fibonacci
# spiral fractal using Turtle
import turtle
import math
def fiboPlot(n):
a = 0
b = 1
square_a = a
square_b = b
# Setting the colour of the plotting pen to blue
x.pencolor("blue")
# Drawing the first square
x.forward(b * factor)
x.left(90)
x.forward(b * factor)
x.left(90)
x.forward(b * factor)
x.left(90)
x.forward(b * factor)
# Proceeding in the Fibonacci Series
temp = square_b
square_b = square_b + square_a
square_a = temp
# Drawing the rest of the squares
for i in range(1, n):
x.backward(square_a * factor)
x.right(90)
x.forward(square_b * factor)
x.left(90)
x.forward(square_b * factor)
x.left(90)
x.forward(square_b * factor)
# Proceeding in the Fibonacci Series
temp = square_b
square_b = square_b + square_a
square_a = temp
# Bringing the pen to starting point of the spiral plot
x.penup()
x.setposition(factor, 0)
x.seth(0)
x.pendown()
# Setting the colour of the plotting pen to red
x.pencolor("red")
# Fibonacci Spiral Plot
x.left(90)
for i in range(n):
print(b)
fdwd = math.pi * b * factor / 2
fdwd /= 90
for j in range(90):
x.forward(fdwd)
x.left(1)
temp = a
a = b
b = temp + b
# Here 'factor' signifies the multiplicative
# factor which expands or shrinks the scale
# of the plot by a certain factor.
factor = 1
# Taking Input for the number of
# Iterations our Algorithm will run
n = int(input('Enter the number of iterations (must be > 1): '))
# Plotting the Fibonacci Spiral Fractal
# and printing the corresponding Fibonacci Number
if n > 0:
print("Fibonacci series for", n, "elements :")
x = turtle.Turtle()
x.speed(100)
fiboPlot(n)
turtle.done()
else:
print("Number of iterations must be > 0")

Factorial of N

Nov 19, 2022CodeCatch

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import math
def factorial(n):
print(math.factorial(n))
return (math.factorial(n))
factorial(5)
factorial(10)
factorial(15)

convert bytes to a string

Jun 1, 2023CodeCatch

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bytes_data = b'Hello, World!'
string_data = bytes_data.decode('utf-8')
print("String:", string_data)

Append to a file

Jun 1, 2023CodeCatch

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filename = "data.txt"
data = "Hello, World!"
with open(filename, "a") as file:
file.write(data)