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Commit bbde7f6

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Merge pull request #60 from josemoracard/jose9-add-exercise-21-average
añadido ejercicio 021
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‎exercises/021-square_root/README.es.md

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# `021` square root
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## 📝 Instrucciones:
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1. Crea una función llamada `square_root()`, que reciba un número como parámetro y devuelva la raíz cuadrada del número dado.
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2. Si el número resultante tiene decimales, solo conserva los 2 primeros.
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## 📎 Ejemplo de entrada:
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```py
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square_root(50)
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```
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## 📎 Ejemplo de salida:
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```py
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7.07
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```
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## 💡 Pistas:
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+ Recuerda que el módulo `math` es una herramienta muy útil.
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+ Para conservar el número deseado de decimales en un número dado, puedes utilizar el método `round()`.

‎exercises/021-square_root/README.md

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# `021` square root
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## 📝 Instructions:
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1. Create a function named `square_root()`, which receives a number as a parameter and returns the square root of the given number.
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2. If the resulting number has decimals, please only keep the first 2.
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## 📎 Example input:
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```py
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square_root(50)
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```
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## 📎 Example output:
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```py
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7.07
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```
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## 💡 Hints:
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+ Remember, the `math` module is a very useful tool.
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+ To keep the desired number of decimals in a given number, you can use the `round()` method.

‎exercises/021-square_root/app.py

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# Your code here
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# Your code here
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import math
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def square_root(number):
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result = round(math.sqrt(number), 2)
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return result
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print(square_root(50))

‎exercises/021-square_root/test.py

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import io, sys, os, re, pytest
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import app
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@pytest.mark.it('You should create a function named square_root')
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def test_square_root_exists(app):
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try:
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from app import square_root
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assert square_root
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except AttributeError:
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raise AttributeError("The function 'square_root' should exist on app.py")
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@pytest.mark.it('The function must return something')
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def test_function_return(capsys, app):
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assert app.square_root(25) != None
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@pytest.mark.it('The function must return a float number')
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def test_function_return_type(capsys, app):
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assert type(app.square_root(25)) == type(1.0)
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@pytest.mark.it('Testing the function square_root with the number 50, it should return 7.07')
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def test_square_root_50(app):
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try:
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assert app.square_root(50) == 7.07
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except AttributeError:
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raise AttributeError("The function 'square_root' should return the value 7.07")
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@pytest.mark.it('Testing the function square_root with the number 2.25, it should return 1.5')
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def test_square_root_2_25(app):
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try:
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assert app.square_root(2.25) == 1.5
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except AttributeError:
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raise AttributeError("The function 'square_root' should return the value 1.5")
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@pytest.mark.it('Testing the function square_root with the number 0, it should return 0')
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def test_square_root_0(app):
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try:
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assert app.square_root(0) == 0
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except AttributeError:
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raise AttributeError("The function 'square_root' should return the value 0")

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