Summary  
This chapter covers how to use Python’s arithmetic operators to perform addition, subtraction, multiplication, and division, how Python follows standard order of operations and how to override it with parentheses, and how to display results using printing.  

General domain of usage  
Numerical computations

Watch this video for a clear demonstration of how to perform basic math operations in Python. You'll see how to use addition, subtraction, multiplication, and division, and learn how Python evaluates expressions following standard math rules. This visual explanation will reinforce the concepts you've practiced so far.

Python destaca en el procesamiento de números, admitiendo diversas operaciones matemáticas que van desde la aritmética básica hasta cálculos complejos.

# Addition
print(1039 + 948)

# Subtraction
print(10484 - 9274)

# Multiplication
print(116 * 99)

# Division
print(95873 / 472)

La función `print()` se puede utilizar para mostrar resultados. A diferencia del texto, las expresiones matemáticas y los números no necesitan estar entre comillas (`"..."` o `'...'`).

Python sigue las reglas matemáticas estándar al realizar cálculos. Es posible combinar diferentes operaciones en una sola expresión y utilizar paréntesis para controlar el orden. Se recomienda experimentar con varias expresiones.

import unittest
import importlib
import io
import re
import sys

def _dynamic_test(test_case, condition, success_message, failure_message):
    if condition:
        test_case._testMethodName = success_message
        test_case.assertTrue(True, success_message)
    else:
        test_case._testMethodName = failure_message
        test_case.fail(failure_message)

class TestUserCode(unittest.TestCase):

    def test_addition_operation_present(self):
        """
        Test to ensure the addition operation `2580 + 198` is present.
        """
        with open('user_code.py', 'r') as file:
            user_code_source = file.read()

        addition_check = re.search(r'2580\s*\+\s*198', user_code_source)

        _dynamic_test(
            self,
            addition_check is not None,
            "The addition operation `2580 + 198` is present.",
            "Expected the addition operation `2580 + 198` to be present."
        )

    def test_multiplication_operation_present(self):
        """
        Test to ensure the multiplication operation `23 * 42` is present.
        """
        with open('user_code.py', 'r') as file:
            user_code_source = file.read()

        multiplication_check = re.search(r'23\s*\*\s*42', user_code_source)

        _dynamic_test(
            self,
            multiplication_check is not None,
            "The multiplication operation `23 * 42` is present.",
            "Expected the multiplication operation `23 * 42` to be present."
        )

    def test_division_operation_present(self):
        """
        Test to ensure the division operation `1512 / 27` is present.
        """
        with open('user_code.py', 'r') as file:
            user_code_source = file.read()

        division_check = re.search(r'1512\s*/\s*27', user_code_source)

        _dynamic_test(
            self,
            division_check is not None,
            "The division operation `1512 / 27` is present.",
            "Expected the division operation `1512 / 27` to be present."
        )

    def test_correct_output_printed(self):
        import user_code
        captured_output = io.StringIO()
        sys.stdout = captured_output
        importlib.reload(user_code)
        sys.stdout = sys.__stdout__

        output = captured_output.getvalue().strip().split("\\n") 

        expected_outputs = ["2778", "966", "56.0"]

        for i, expected in enumerate(expected_outputs):
            _dynamic_test(
                self,
                output[i] == expected,
                f'The correct result `{expected}` is printed for operation {i + 1}.',
                f'Expected `{expected}` to be printed, but got `{output[i]}`.'
            )

if __name__ == '__main__':
    unittest.main()

test_main.py

Python es un lenguaje de programación de alto nivel interpretado y de propósito general. A diferencia de HTML, CSS y JavaScript, que se utilizan principalmente para el desarrollo web, Python es versátil y puede emplearse en diversos campos, incluyendo desarrollo de software, ciencia de datos y desarrollo back-end. En este curso, explorarás los aspectos fundamentales de Python y, al finalizar, ¡podrás crear tus propias funciones!

Sumérgete en los conceptos básicos de Python, explora el entorno de trabajo y realiza operaciones matemáticas simples. Aprende a escribir código legible utilizando comentarios y a manejar expresiones matemáticas básicas y avanzadas mientras muestras los resultados.

Realizar Operaciones Matemáticas Simples en Python

Solución

Realizar Operaciones Matemáticas Simples en Python

Solución