hyperskill.org – Python

decimal_places.py

# Round the number from input to the required number of decimals.
#
# The input format:
# Two lines: the first with a floating-point number, the second with an integer representing the decimal count.
#
# The output format:
# A formatted string containing the rounded number.

number = float(input())
precision = int(input())
print(f"{number:.{precision}f}")

find_the_length.py

# Write a program that will print the length of a printable representation of the string 'That is \n mine'.
# The single quotes are not part of this string.

print(len(repr("That is \n mine")))

fourth_root.py

# Write a program that prints the fourth root from a given real number.
# The square root function is located in the math module. Try to find and apply it.
# Do not round the result.

import math

number = float(input())
result = math.pow(number, 1 / 4)

print(result)

good_programmer.py

# You are really good at what you do (programming), so your colleague has decided to congratulate you on the completed project
# with a message "You are the best programmer!". But how to do this?
# Write the code that prints this message using an escape sequence so that each word of the sentence would be on a new line.

print("You are the best programmer!".replace(" ", "\n"))

math.py

abs_integer = abs(-10)  # 10
abs_float = abs(-10.0)  # 10.0

round_integer = round(10.0)      # 10, returns integer when ndigits is omitted
round_float = round(10.2573, 2)  # 10.26

pow_integer = pow(2, 10)  # 1024
pow_float = pow(2.0, 10)  # 1024.0

largest = max(1, 2, 3, 4, 5)   # 5
smallest = min(1, 2, 3, 4, 5)  # 1

# abs() and pow() functions have equivalents in the math module.
# The key difference of math.fabs() and math.pow() is that they always return floats:
import math

fabs_integer = math.fabs(-10)  # 10.0
fabs_float = math.fabs(-10.0)  # 10.0

pow_integer = math.pow(2, 10)  # 1024.0
pow_float = math.pow(2.0, 10)  # 1024.0

my_sqrt.py

import math

def my_sqrt(value):
    """ https://hyperskill.org/learn/step/8242 """
    if isinstance(value, str):
        return "The string should be converted into a numeric data type"
    elif isinstance(value, (float, int)):
        return math.sqrt(value)
    else:
        return None