Write a function to find the sum of digits of a number. Write a function to find the square root of a number. Write a function to print 'Hot' or 'Cold' depending on the temperature... Write a function to find the sum of digits of a number. Write a function to find the square root of a number. Write a function to print 'Hot' or 'Cold' depending on the temperature the user enters. Make your own power function.

Understand the Problem

The question is asking for the creation of multiple functions in a programming context. Specifically, it requests functions to sum the digits of a number, find the square root of a number, determine if a temperature is 'Hot' or 'Cold', and implement a power function.

Answer

Functions created are as follows: 1. Sum of digits 2. Square root 3. Hot or cold 4. Custom power function

Answer for screen readers

The answers to the functions are as follows:

Sum of digits function:

def sum_of_digits(number):
    return sum(int(digit) for digit in str(number))

Square root function:

import math

def square_root(number):
    return math.sqrt(number)

Hot or cold function:

def hot_or_cold(temperature):
    if temperature > 20:
        print("Hot")
    else:
        print("Cold")

Custom power function:

def my_pow(base, exponent):
    result = 1
    for _ in range(exponent):
        result *= base
    return result

Steps to Solve

Function to Find Sum of Digits To create a function that sums the digits of a number, we can convert the number to a string, iterate over each digit, convert it back to an integer, and sum them up.

def sum_of_digits(number):
    return sum(int(digit) for digit in str(number))

Function to Find Square Root For the square root function, we can use the math module in Python for better accuracy and performance.

import math

def square_root(number):
    return math.sqrt(number)

Function to Determine Hot or Cold This function needs to read an input temperature and compare it to a threshold (e.g., 20 degrees). If it is above this threshold, it prints "Hot"; otherwise, it prints "Cold".

def hot_or_cold(temperature):
    if temperature > 20:
        print("Hot")
    else:
        print("Cold")

Custom Power Function To create a power function, we implement a simple multiplication loop to raise a number to a specified power.

def my_pow(base, exponent):
    result = 1
    for _ in range(exponent):
        result *= base
    return result

The answers to the functions are as follows:

Sum of digits function:

def sum_of_digits(number):
    return sum(int(digit) for digit in str(number))

Square root function:

import math

def square_root(number):
    return math.sqrt(number)

Hot or cold function:

def hot_or_cold(temperature):
    if temperature > 20:
        print("Hot")
    else:
        print("Cold")

Custom power function:

def my_pow(base, exponent):
    result = 1
    for _ in range(exponent):
        result *= base
    return result

More Information

These functions cover fundamental programming concepts such as loops, conditionals, and basic mathematical operations. They can be used in various applications, from simple calculators to game development.

Tips

Forgetting to import the math module when calculating the square root.
Not handling negative numbers in the square root function.
Assuming all inputs are valid without validation checks.

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