text: #ifndef INTERNAL_MATH_H                                  /*-*-C-*-vi:se ft=c:*/
  #define INTERNAL_MATH_H
  /**
   * @file
   * @author     Ruby developers <ruby-core@ruby-lang.org>
   * @copyright  This  file  is   a  part  of  the   programming  language  Ruby.
   *             Permission  is hereby  granted,  to  either redistribute  and/or
   *             modify this file, provided that  the conditions mentioned in the
   *             file COPYING are met.  Consult the file for details.
   * @brief      Internal header for Math.
   */
  #include "ruby/ruby.h"          /* for VALUE */
  
  /* math.c */
  VALUE rb_math_atan2(VALUE, VALUE);
  VALUE rb_math_cos(VALUE);
  VALUE rb_math_cosh(VALUE);
  VALUE rb_math_exp(VALUE);
  VALUE rb_math_hypot(VALUE, VALUE);
  VALUE rb_math_log(int argc, const VALUE *argv);
  VALUE rb_math_sin(VALUE);
  VALUE rb_math_sinh(VALUE);
  
  #endif /* INTERNAL_MATH_H */
  