Discovering Imaginary Numbers in Everyday Life

Book description

The book is inspired by social media users’ exceptional laudation and acceptance for the author’s innovative work on deriving the imaginary unit and Euler's formula from first principles, which has finally revealed imaginary numbers in our daily life after 500 years since their inception in the 1520s. Today complex numbers formed from imaginary numbers have widespread applications in mathematics, physics and engineering, but have remained puzzling to many learners. The work opens up the opportunity to explore, extend and share with the general public the newly gained comprehensive understanding for the thorough demystification, popularization and empowerment to broader educational levels including elementary 6th grade and up. The most important practical implication, particularly for learners, is that the complex plane is no longer needed and can be replaced by the familiar x-y plane, which has a direct connection to the real world.

Praise from social media users for the work

• "Dr Qiujiang Lu congratulations for this extraordinary work. And thank you so much."
  — @walrustrent2001
• "Thanks for the thought-provoking presentation."
  — @davidwright8432
• "Thank you for making it so comprehensive and clear. I now finally and fully understand it."
  — @peterasamoah8779
• "Very interesting approach! I learnt a lot."
  — @sietsebuijsman8523
• "I feel like I'm learning about i for the first time."
  — @drakewilson6913
• "thank you to help us to understand the underlying principles that make the math so beautiful"
  — @gabrielmonopoli7994
• "This is lovely. Well done and thanks for sharing."
  — @meccamiles7816
• "This is a hidden gem! Great work!"
  — @gemini_537

Author

Qiujiang Lu is an independent researcher and software developer in Silicon Valley whose work had revealed imaginary numbers in the real world, which remained unknown for 500 years since the inception. His past research had involved discovering the mechanism of ice crystal growth habit change, an outstanding problem for more than 50 years in cloud physics that is closely related to the “thousands’ variations” in snowflakes. His interests are in physics, mathematics, software, and their multidisciplinary applications.

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