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Jasper Gerald R. Cubias IV-Graviton
Euler’s Formula First and foremost, I want to clarify that the pronunciation of “Euler” in Euler’s
Formula is “Oiler” so it should be said as “Oiler’s” Formula.
The equation is called as such because one of the main variables in this formula is
e or Euler’s Number, which is named after the Swiss Mathematician Leohnard Euler.
This number e is an irrational number is approximated to be 2.718... This value of e is a
mathematical constant which is used as the base in natural logarithms instead of base ten,
which is commonly used in logarithms.
Another fundamental variable used in this equation is π, which is also an
irrational number. There are millions of known digits of π, which are presently calculated
using computers, but an example is 3.14159... Pi (π) is also a mathematical constant just
like e, and this constant represents the ratio of a circle’s circumference to its diameter. Pi
is one of the most important mathematical constants; its application is not only in math,
but it can also be used in science and engineering.
This equation also makes use of the mathematical constant i which is equal to the
square root of negative one. This constant i, is an imaginary number because square roots
of negative numbers do not exist. Since there are no values like that which exist, the
value is simply imagined as the square root of negative one and assigned the symbol i.
The last two constants that are involved with this equation are two symbols we are
all familiar with. These two are one and zero. One is an important mathematical constant
which is the identity factor for multiplication and division. Zero, on the other hand, is an
identity factor for addition and subtraction. These two numbers are very commonly used
and are very important for mathematics and other sciences.
Imagine the first three constants were mixed into one equation. These first three
constants which are all approximations, the first two being irrational, and the last one, i
being imaginary, were mixed into one equation. What would the expected outcome be?
Had I not known of this equation, I would have expected some complex value which
would give a person a nosebleed, but no. This formula, which raises e to the product of π
and i, states that this value is equal to negative one.
e(π*i) = -1 Rearranging this we get,
e(π*i) +1 = 0 which is also known to be Euler’s Formula.
The first thing that comes to your mind, I’m sure, is “why is this so?” The proof
for this is that there is also based on Euler’s Equation, proven by derivatives and other
complex mathematics, which is eix=cosx+isinx.
Substituting π for x, we get
e π*i =cos π +isin π
=(-1)+i(0)
e π*i =-1
This equation is special and mysterious not only because it contains five of the
most important mathematical constants, which are i, e, π, 1, and 0; but also because it
makes use of the three fundamental mathematical operations which are addition,
multiplication, and exponentiation. Another thing that is special about this equation is
that it raises an irrational constant, to a product of another irrational constant and an
imaginary constant, and it produces a whole number, and a simple one, which is -1.
This equation, Euler’s Formula, still holds many mysteries and amazes many
mathematics students and professors worldwide; but what is proven to be true holds
true—no matter how outrageous it may seem.
Sources:
http://www.math.toronto.edu/mathnet/questionCorner/epii.html
http://en.wikipedia.org/wiki/Euler's_identity
http://mathforum.org/library/drmath/view/51428.html
http://mathforum.org/library/drmath/view/51921.html
http://www.eveandersson.com/pi/digits/1000000.txt?
http://www.zyra.org.uk/log-e.htm