- Euler’s formula, named after Leonhard Euler, is a mathematical formula in complex analysis that establishes the fundamental relationship between the trigonometric functions and the complex exponential function. Euler’s formula states that, for any real number x, one has eix = cos x + i sin x, where e is the base of the natural logarithm, i is the imaginary unit, and cos and sin are the trigonometric functions cosine and sine respectively. This complex exponential function is sometimes denoted cis x (“cosine plus i sine”). The formula is still valid if x is a complex number, and is also called Euler’s formula in this more general case.
And God blessed them and God sayd vnto them. Growe and multiplye and fyll the erth and subdue it and have domynyon over the fysh of the see and over the foules of the ayre and over all the beastes that move on the erth.
Genesis 1:28 TYN