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beta_incomplete_regularized

Run Example
(%i1)a:1;
(%o1)                                  1
(%i2) b:999;
(%o2)                                 999
(%i3) p:a/(a+b);
                                      1
(%o3)                                ----
                                     1000
(%i4) r:p+0.05;
(%o4)                                0.051
(%i5) l:0;
(%o5)                                  0
(%i6) p*(beta_incomplete_regularized(a,b,r)-beta_incomplete_regularized(a,b,l));
(%o6)                                0.001
(%i7) 
Run Example
a:10;
(%o1)                                 10
(%i2) b:10;
(%o2)                                 10
(%i3) p:a/(a+b);
                                       1
(%o3)                                  -
                                       2
(%i4) r:p+0.05;
(%o4)                                0.55
(%i5) l:p-0.05;
(%o5)                                0.45
(%i6) p*(beta_incomplete_regularized(a,b,r)-beta_incomplete_regularized(a,b,l));
(%o6)                          0.17103591242161
(%i7) 
Run Example
p=.8;
(%o1)                               p = 0.8
(%i2) beta_incomplete_regularized(4,1,.75);
(%o2)                             0.31640625
(%i3) 

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