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primes_percentage_approx.py
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primes_percentage_approx.py
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import math
from decimal import Decimal, getcontext
# Set the precision for Decimal calculations
getcontext().prec = 50 # Adjust the precision as needed
def calculate_expression():
try:
# Ask the user for a number
user_input = float(input("Enter a number: "))
if user_input <= 0:
print("Invalid input. Please enter a positive number.")
return
# Calculate the expression number/log(number) using Decimal
result = Decimal(user_input) / Decimal(math.log(user_input))
# Calculate result2 using Decimal for more precision
if math.log(user_input) > 0:
result2 = Decimal(100) / Decimal(math.log(user_input))
else:
result2 = Decimal('nan')
# Print the results with higher precision
print(f"Result 1: {result}")
print(f"Result 2: {result2}")
except ValueError:
print("Invalid input. Please enter a valid number.")
# Call the function to run the program
while True:
calculate_expression()