/usr/include/qm-dsp/maths/MathAliases.h is in libqm-dsp-dev 1.7.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
/*
    QM DSP Library
    Centre for Digital Music, Queen Mary, University of London.
    This file 2005-2006 Christian Landone.
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/
#ifndef MATHALIASES_H
#define MATHALIASES_H
#include <cmath>
#include <complex>
using namespace std;
typedef complex<double> ComplexData;
#ifndef PI
#define PI (3.14159265358979232846)
#endif
#define TWO_PI 		(2. * PI)
#define EPS 2.2204e-016
/* aliases to math.h functions */
#define EXP				exp
#define COS				cos
#define SIN				sin
#define ABS				fabs
#define POW				powf
#define SQRT			sqrtf
#define LOG10			log10f
#define LOG				logf
#define FLOOR			floorf
#define TRUNC			truncf
/* aliases to complex.h functions */
/** sample = EXPC(complex) */
#define EXPC			cexpf
/** complex = CEXPC(complex) */
#define CEXPC			cexp
/** sample = ARGC(complex) */
#define ARGC			cargf
/** sample = ABSC(complex) norm */
#define ABSC			cabsf
/** sample = REAL(complex) */
#define REAL			crealf
/** sample = IMAG(complex) */
#define IMAG			cimagf
#endif
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