round to first significant decimal

The code extract first found and convert to 1

ex)

Input: 0.02323, Output: 0.01

Input: 0.0023, Output: 0.001

Input: 23, Output: 1

Input: 0.0042323, Output: 0.001

..

 refer to this code:

def custom_marearts_round(number):

# Ensure number is a float

float_number = float(number)

# If number is zero, return it as is

if number == 0:

return 0

# If the number is an integer, return 1

elif float_number.is_integer():

return 1

# Convert the number to exponential notation

exponential_notation = f'{float_number:.1e}'

# Extract the exponent part and convert to int

exponent = int(exponential_notation.split('e')[-1])

# Convert to desired output format

result = float(f'1e{exponent}')

return result

# Examples:

input1 = 0.02323

output1 = custom_marearts_round(input1)

print(f"Input: {input1}, Output: {output1}")

input2 = 0.0023

output2 = custom_marearts_round(input2)

print(f"Input: {input2}, Output: {output2}")

input3 = 23

output3 = custom_marearts_round(input3)

print(f"Input: {input3}, Output: {output3}")

input4 = 0.0042323

output4 = custom_marearts_round(input4)

print(f"Input: {input4}, Output: {output4}")

..

🙇🏻‍♂️ Thank you

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