- Magnuson Park is a park in the Sand Point neighborhood of Seattle, Washington, United States. At 350 acres (140 ha) it is the second-largest park in Seattle, after Discovery Park in Magnolia (which covers 534 acres (2.16 km2)). Magnuson Park is located at the site of the former Naval Station Puget Sound, on the Sand Point peninsula with Pontiac and Wolf bays that juts into Lake Washington in northeast Seattle.
- Euler’s formula (Wikipedia)
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.