CoffeeScript mathematical constant

Mathematical constants

Problem

You need to use common mathematical constants, such π or e.

Solution

Use Javascript's Math object to provide the mathematical constants that are usually required.

Math.PI
# => 3.141592653589793

# Note: Capitalization matters! This produces no output, it's undefined.
Math.Pi
# =>

Math.E
# => 2.718281828459045

Math.SQRT2
# => 1.4142135623730951

Math.SQRT1_2
# => 0.7071067811865476

# Natural log of 2. ln(2)
Math.LN2
# => 0.6931471805599453

Math.LN10
# => 2.302585092994046

Math.LOG2E
# => 1.4426950408889634

Math.LOG10E
# => 0.4342944819032518

Discuss

Another example is the question of the use of a mathematical constant in the real world, the section of the mathematical chapter on http://coffeescript-cookbook.github.io/chapters/math/radians-degrees angles).