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/*

 * Piecewise polynomial approximation of

 * inverse of the normal cumulative distribution function (CDF)

 */

/*

 * Copyright (C) 2014, Guangxi Liu <guangxi.liu@opencores.org>

 *

 * This source file may be used and distributed without restriction provided

 * that this copyright statement is not removed from the file and that any

 * derivative work contains the original copyright notice and the associated

 * disclaimer.

 *

 * This source file is free software; you can redistribute it and/or modify it

 * under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation; either version 2.1 of the License,

 * or (at your option) any later version.

 *

 * This source is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public

 * License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this source; if not, download it from

 * http://www.opencores.org/lgpl.shtml

 */

#ifndef ICDF_H

#define ICDF_H

#ifdef __cplusplus

extern "C" {

#endif

/* Calculate Inverse of the normal CDF */

long icdf(unsigned long long x);

#ifdef __cplusplus

}

#endif

#endif