Catalan's Constant, approximately 0.915... It is defined to be the series where terms are
k ranges from 0 to infinity.
Euler's constant gamma. Sometimes called the Euler-Mascheroni constant.
The Golden Ratio.
Free fall acceleration at sea level in meters per second squared. This is the standard gravity constant 9.80665. The gravity in your particular neck of the woods might be different due to different altitude and the fact that the earth is not perfectly round and uniform.
See Wikipedia for more information.
The base of the natural logarithm.
is the exponential function
exp. It is approximately
2.71828182846... This number is sometimes called Euler's number, although there are
several numbers that are also called Euler's. An example is the gamma constant:
The number pi, that is the ratio of a circle's circumference to its diameter. This is approximately 3.14159265359...