a = s2 + 2sn ( s squared + 2sn )

b = 2n2 + 2sn ( 2n squared + 2sn

c = s2 +2n2+ 2sn ( s squared +2n squared + 2sn)

the incirle radius is sn and the incircle diameter 2sn.

]]>secondly its good to see on front page the whole player list.

n Fastest to n ODI centuries (innings required)

3 Pietersen, Amiss (9) Mohammad Shahzad (11) de Kock (15)

4 de Kock (16) Amiss (18) Babar Azam (23)

5 de Kock (19) Tharanga, Dhawan (28) Amla (30)

6 Tharanga (29) Amla (34) de Kock (35)

7 Amla (41) Zaheer Abbas (42) de Kock (50)

8 Amla (43) de Kock (52) Dhawan (57)

9 Amla (52) de Kock (53) Dhawan (72)

10 de Kock (55) Amla (57) Kohli (80)

11 Amla (64) de Kock (65) Kohli (82)

12 Amla (81) Kohli (83) Warner (90)

13 Amla (83) Kohli (86) Warner (91)

14 Amla (84) Kohli (103) de Villiers (131)

15 Amla (86) Kohli (106) Saeed Anwar (143)

16 Amla (94) Kohli (110) Ganguly (151)

17 Amla (98) Kohli (112) de Villiers (156)

18 Amla (102) Kohli (119) de Villiers (159)

19 Amla (104) Kohli (124) de Villiers (171)

20 Amla (108) Kohli (133) de Villiers (175)

21 Amla (116) Kohli (138) de Villiers (183)

22 Amla (126) Kohli (143) de Villiers (186)

23 Amla (132) Kohli (157) de Villiers (187)

24 Kohli (161) de Villiers (192) Tendulkar (219)

25 Kohli (162) Tendulkar (234) Ponting (279)

26 Kohli (166) Tendulkar (247) Ponting (286)

27 Kohli (169) Tendulkar (254) Ponting (308)

28 Tendulkar (259) Ponting (314) Jayasuriya (416)

29-30 Tendulkar Ponting

31-49 Tendulkar