132 MATHEMATICAL FORMULA AND ELLIPTIC FUNCTIONS 



6.606 The Beta Function. If x and y are real and positive: 



ri 



Jo ' 



sin 



6.610 For a; real and positive: 



6.611 



(l-*) = M + TTCOtTT*. 



6.612 



= -7- 2 log 2, 



= -7, 

 = 1-7, 



6.613 





- -7 



