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Python NumPy Tutorial for Beginners

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Overview

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Beginner-level tutorial on the NumPy library for Python. It explains what NumPy is and how arrays compare to Python lists in speed and functionality, then covers creating arrays and their shape, size and data types; accessing and changing elements, rows and columns through slicing; initializing arrays of zeros, ones, constants and random values; the pitfalls of copying variables; basic mathematics including arithmetic and trigonometry; linear algebra and statistics routines; reorganizing arrays with reshape, vstack and hstack; loading data from a file; and advanced indexing with boolean masking, with practice problems along the way. Suited to Python users starting out with numerical data work.

Syllabus

What is NumPy.
NumPy vs Lists (speed, functionality).
Applications of NumPy.
The Basics (creating arrays, shape, size, data type).
Accessing/Changing Specific Elements, Rows, Columns, etc (slicing).
Initializing Different Arrays (1s, 0s, full, random, etc...).
Problem #1 (How do you initialize this array?).
Be careful when copying variables!.
Basic Mathematics (arithmetic, trigonometry, etc.).
Linear Algebra.
Statistics.
Reorganizing Arrays (reshape, vstack, hstack).
Load data in from a file.
Advanced Indexing and Boolean Masking.
Problem #2 (How do you index these values?).

Taught by

freeCodeCamp.org

Reviews

4.5 rating, based on 4 Class Central reviews

Start your review of Python NumPy Tutorial for Beginners

  • Profile image for Kajal Chaudhari
    Kajal Chaudhari
    Python NumPy Tutorial for Beginners** by freeCodeCamp is an excellent introduction to NumPy, a fundamental Python library for numerical computing. The tutorial covers key concepts such as arrays, indexing, slicing, reshaping, and mathematical operations, making it easy for beginners to grasp. The explanations are clear, with practical examples that reinforce learning. The step-by-step approach ensures a smooth learning curve, even for those with minimal experience in Python. The tutorial is well-structured, making it a valuable resource for students, data analysts, and aspiring data scientists. Overall, it’s an informative and engaging guide to mastering NumPy efficiently.
  • Profile image for Sandeep Pittala
    Sandeep Pittala
    The "Python NumPy Tutorial for Beginners" is an excellent course! It offers clear explanations, practical examples, and hands-on exercises that make learning NumPy easy and enjoyable. Highly recommended!
  • Profile image for Lakshmi V
    Lakshmi V
    Its just like wow. Really superb explanation.content are also good.i have got a amazing experience with this course. I saw more videos to learn numpy. But it was hard to understand. By god's grace i found this platform.Now i have learned about the numpy.it is really helpfull.Thank you class central. Keep rocking
  • Profile image for Harshal Dhage
    Harshal Dhage
    I recently completed a NumPy course, and it was an outstanding learning experience. The course was well-organized, starting with basic array operations and progressing to more advanced topics like broadcasting, linear algebra, and integration with other libraries. The instructor explained concepts clearly, using practical examples and exercises that reinforced learning effectively. The use of Jupyter Notebooks for demonstrations made the content engaging and interactive. Real-world applications highlighted the importance of NumPy in data analysis and scientific computing. Overall, the course significantly enhanced my understanding and confidence in using NumPy for various data science tasks.
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