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 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.
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