At the top of src/nmath/qnorm.c it is stated:
* Copyright (C) 1998 Ross Ihaka
* Copyright (C) 2000--2005 The R Development Core Team
* based on AS 111 (C) 1977 Royal Statistical Society
* and on AS 241 (C) 1988 Royal Statistical Society
The routine is in fact an f2c'd version of
David Heffernan wrote:
At the top of src/nmath/qnorm.c it is stated:
* Copyright (C) 1998 Ross Ihaka
* Copyright (C) 2000--2005 The R Development Core Team
* based on AS 111 (C) 1977 Royal Statistical Society
* and on AS 241 (C) 1988 Royal Statistical Society
The routine