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Learn Python from Scratch
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Contenido del Curso

Learn Python from Scratch

Learn Python from Scratch

1. The basics
Hello, World!Hello, me!VariablesCommentsIndentationNumbers and strings
2. Arithmetic operations
AdditionMultiplication and powerDivision and whole part division
3. Common data types
Data typesNumbersfloat and intStoring textStrings slicingConcatenation
4. Conditional statements
Boolean data typeCombining conditionsSimple if/else expressions (1/2)Simple if/else expressions (2/2)If/else expressions with multiple conditions (1/2)If/else expressions with multiple conditions (2/2)
5. Other data types
Lists (1/3)Lists (2/3)Lists (3/3)Tuples (1/3)Tuples (2/3)Tuples (3/3)Dictionaries (1/2)Dictionaries (2/2)
6. Loops
while loop (1/2)while loop (2/2)for loop (1/5)for loop (2/5)for loop (3/5)for loop (4/5)for loop (5/5)
7. Functions
Built-in functionsWriting your own functions (1/5)Writing your own functions (2/5)Writing your own functions (3/5)Writing your own functions (4/5)Writing your own functions (5/5)lambda functions

Numbers

As you may notice, despite having two integer numbers, Python somehow classified them with different types: one of them is int, while another is float. Also, there is one more numeric type in Python. Let's consider all of them:

  • int - refers to integer numbers (i.e. 3, -1, 1003 etc);
  • float - refers to real numbers (i.e. 2.8, 3.333, 3.0 etc);
  • complex - refers to complex numbers (i.e. 3+2j).

To make Python understand that you want to assign to a variable specific type, use int() for converting to an integer, float() - to real, complex() - to complex.

Returning to our question above, Python assigned float type to variable days as it wants to "play it safe", insofar as the division of two integers is not a compulsory integer (unlike multiplication, subtraction, or addition).

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

¿Todo estuvo claro?

Sección 3. Capítulo 2
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Numbers

As you may notice, despite having two integer numbers, Python somehow classified them with different types: one of them is int, while another is float. Also, there is one more numeric type in Python. Let's consider all of them:

  • int - refers to integer numbers (i.e. 3, -1, 1003 etc);
  • float - refers to real numbers (i.e. 2.8, 3.333, 3.0 etc);
  • complex - refers to complex numbers (i.e. 3+2j).

To make Python understand that you want to assign to a variable specific type, use int() for converting to an integer, float() - to real, complex() - to complex.

Returning to our question above, Python assigned float type to variable days as it wants to "play it safe", insofar as the division of two integers is not a compulsory integer (unlike multiplication, subtraction, or addition).

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

¿Todo estuvo claro?

Sección 3. Capítulo 2
toggle bottom row

Numbers

As you may notice, despite having two integer numbers, Python somehow classified them with different types: one of them is int, while another is float. Also, there is one more numeric type in Python. Let's consider all of them:

  • int - refers to integer numbers (i.e. 3, -1, 1003 etc);
  • float - refers to real numbers (i.e. 2.8, 3.333, 3.0 etc);
  • complex - refers to complex numbers (i.e. 3+2j).

To make Python understand that you want to assign to a variable specific type, use int() for converting to an integer, float() - to real, complex() - to complex.

Returning to our question above, Python assigned float type to variable days as it wants to "play it safe", insofar as the division of two integers is not a compulsory integer (unlike multiplication, subtraction, or addition).

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

¿Todo estuvo claro?

As you may notice, despite having two integer numbers, Python somehow classified them with different types: one of them is int, while another is float. Also, there is one more numeric type in Python. Let's consider all of them:

  • int - refers to integer numbers (i.e. 3, -1, 1003 etc);
  • float - refers to real numbers (i.e. 2.8, 3.333, 3.0 etc);
  • complex - refers to complex numbers (i.e. 3+2j).

To make Python understand that you want to assign to a variable specific type, use int() for converting to an integer, float() - to real, complex() - to complex.

Returning to our question above, Python assigned float type to variable days as it wants to "play it safe", insofar as the division of two integers is not a compulsory integer (unlike multiplication, subtraction, or addition).

Tarea

The distance between San Francisco and New York is about 4677.4 km (by roads). This value is saved in dist_km variable. Your tasks are:

  1. Convert the distance to miles by diving distance in kilometers by 1.609 (approximately). Save the result within dist_mi variable.
  2. Output the value of dist_mi.
  3. Convert dist_mi into integer, and output this value.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
Sección 3. Capítulo 2
Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
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