Bar Charts
Bar Chart:A bar chart or bar graph is a type of column chart where each data value is represented using rectangular bars with lengths proportional to the values that they represent. The bars in...
Monthly Archive: August 2014
Special constants
π 2.71828 18284 59045…. e 2.71828 18284 59045… √2 1.41421 35623 73095… 1 radian 180°/π = 57.29577 95130…° 1° π/180 radians = 0.01745 32925… radians
Physical Constants
speed of light in a vacuum c 2.97 924 58×108 m s-1 (by definition) permeability of a vacuum µ0 4π 10-7 H m-1 (by denition) permittivity of a vacuum ε0 1/^µc² = 8.854 187...