Dear Readers,

 

Series Math Study (SMS), a group of students, has built nonprofit Web site in the year of 2005 with the purpose of exploring the beauty of math series by using the knowledge of calculus and number theory techniques to find new series and verify some series formulae that had been discovered from previous centuries to present.   There are many math series that have connections to special constants such as Archimedes, Natural Logarithmic Base, Euler, Catalan, etc.  Some formulae contain special structures to reveal themselves of fast convergent series that can be used to calculate ever more accurate values of some special mathematical constants to billion places without computing any prior digits.  SMS does not use programmatic algorithms and powerful mathematical computing environments like Mapple and Matlab to research.   SMS pursues using heuristic mathematics to develop the general structures of series.

 

We are interested not only in exploring some fast convergent series but also in constituting some methods to determine the exact value of each sum or product series in terms of special mathematical constants.  Once the exact value of the series is determined it is called a closed form.  The hardest thing when developing a series is to find its exact value.   As mentioned above, we use calculus and number theory to develop series formula by establishing its general structure and then solve for its general formula.  When its general formula is determined, the value of that specific series can be evaluated exactly in terms of other mathematical constants.  Whenever a series is expressed in closed form such as even zetas series ( , , , …), that series would be beautiful and valuable in math.  The value of zeta (2) was first discovered by Swiss mathematical genius Leonahard Euler in 1734.  There are many math series with their exact values are not known such as odd zetas ( , , , …) but its approximated values can be calculated.  The approximated values of those series can be assigned to become new mathematical constants if its structures do not exist in any mathematical forms.  It is interested to consider whether the approximated values of those series are known to be irrational or transcendental.   Some special constants such as pi or e are real numbers, and they are both known to be irrational and transcendental through centuries.  We can say that the constant pi or e is generated from shapes or numbers when considering it in either geometry or math series under Cartesian coordinate system.   There is a question whether these math constants can be expressed in normal integer numbers if a new math system is developed while the nature or integer numbers are considered to be irrational?  When studying about series, we can understand how the nature numbers hold an important role in math, and man creates formulae or other works.  We understand that convergent series provide quite useful analytical approximations.

 

The most series found under “Index” section in this Web site were proved step by step.  However, you are encouraged to verify the liability of specific formula if interested.  The curiosity of understanding what is unknown is a main key to lead the discovery of many interesting results.   Even if the mathematicians have known many series, that knowledge would be still a drop in ocean compared to the innumerable series that had been hidden under multi-forms and multi-structures in mathematics.  The knowledge of the unknown series would be indicated the time span of each era.  In this Web site, some series may have not been found in math handbooks or from elsewhere.  SMS voluntarily sends to readers as a math gift, and if possible, to mathematics as a partial contribution even if it is a lone grain of sand, respectively. 

 

The classification of series formulas to similar families or to related groups has not been considered because more coming series are often going to be “randomly” added and posted on the site without following specific rules.

 

Comments and constructive suggestions are always welcome. 

 

Sincerely,

 

SMS

 

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The trace of footsteps is marked on an expanse of sand, the wind can make it back to where it is.