/* $Id: plugin_math.c,v 1.1 2003/12/19 05:50:34 reinelt Exp $
 *
 * math plugin
 *
 * Copyright 2003 Michael Reinelt <reinelt@eunet.at>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux 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, or (at your option)
 * any later version.
 *
 * LCD4Linux 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: plugin_math.c,v $
 * Revision 1.1  2003/12/19 05:50:34  reinelt
 * added plugin_math.c and plugin_string.c
 *
 */

/* 
 * exported functions:
 *
 * int plugin_init_math (void)
 *  adds some handy constants and functions
 *
 */


#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#include "debug.h"
#include "plugin.h"


static void my_sqrt (RESULT *result, RESULT *arg1)
{
  double value=sqrt(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}

static void my_exp (RESULT *result, RESULT *arg1)
{
  double value=exp(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}

static void my_ln (RESULT *result, RESULT *arg1)
{
  double value=log(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}

static void my_log (RESULT *result, RESULT *arg1)
{
  double value=log10(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}

static void my_sin (RESULT *result, RESULT *arg1)
{
  double value=sin(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}

static void my_cos (RESULT *result, RESULT *arg1)
{
  double value=cos(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}

static void my_tan (RESULT *result, RESULT *arg1)
{
  double value=tan(R2N(arg1));
  SetResult(&result, R_NUMBER, &value); 
}


static void my_min (RESULT *result, RESULT *arg1, RESULT *arg2)
{
  double a1=R2N(arg1);
  double a2=R2N(arg2);
  double value=a1<a2?a1:a2;
  SetResult(&result, R_NUMBER, &value); 
}

static void my_max (RESULT *result, RESULT *arg1, RESULT *arg2)
{
  double a1=R2N(arg1);
  double a2=R2N(arg2);
  double value=a1>a2?a1:a2;
  SetResult(&result, R_NUMBER, &value); 
}


int plugin_init_math (void)
{
  // set some handy constants
  AddNumericVariable ("Pi", M_PI);
  AddNumericVariable ("e",  M_E);
  
  // register some basic math functions
  AddFunction ("sqrt", 1, my_sqrt);
  AddFunction ("exp",  1, my_exp);
  AddFunction ("ln",   1, my_ln);
  AddFunction ("log",  1, my_log);
  AddFunction ("sin",  1, my_sin);
  AddFunction ("cos",  1, my_cos);
  AddFunction ("tan",  1, my_tan);
  
  // min, max
  AddFunction ("min",  2, my_min);
  AddFunction ("max",  2, my_max);

  return 0;
}

ables.git/tree/?h=debian/0%2bgit20141218.b46a22c-1&amp;id=86e10c1a9641692a062ca159b49d91e0525d8c2c'>root</a>/<a href='/debian/dtv-scan-tables.git/tree/dvbv5_dvb-t?h=debian/0%2bgit20141218.b46a22c-1&amp;id=86e10c1a9641692a062ca159b49d91e0525d8c2c'>dvbv5_dvb-t</a>/<a href='/debian/dtv-scan-tables.git/tree/dvbv5_dvb-t/fi-Suomussalmi_Ala-Vuokki?h=debian/0%2bgit20141218.b46a22c-1&amp;id=86e10c1a9641692a062ca159b49d91e0525d8c2c'>fi-Suomussalmi_Ala-Vuokki</a></div><div class='content'>blob: 0878a88eecf8a409d835be26ef75dd6db0df29fe (<a href='/debian/dtv-scan-tables.git/plain/dvbv5_dvb-t/fi-Suomussalmi_Ala-Vuokki?h=debian/0%2bgit20141218.b46a22c-1&amp;id=86e10c1a9641692a062ca159b49d91e0525d8c2c'>plain</a>)
<table summary='blob content' class='blob'>
<tr><td class='linenumbers'><pre><a id='n1' href='#n1'>1</a>
<a id='n2' href='#n2'>2</a>
<a id='n3' href='#n3'>3</a>
<a id='n4' href='#n4'>4</a>
<a id='n5' href='#n5'>5</a>
<a id='n6' href='#n6'>6</a>
<a id='n7' href='#n7'>7</a>
<a id='n8' href='#n8'>8</a>
<a id='n9' href='#n9'>9</a>
<a id='n10' href='#n10'>10</a>
<a id='n11' href='#n11'>11</a>
<a id='n12' href='#n12'>12</a>
<a id='n13' href='#n13'>13</a>
</pre></td>
<td class='lines'><pre><code><style>pre { line-height: 125%; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span># 2014-04-18 Antti Palosaari &lt;crope@iki.fi&gt;
# generated from http://www.digita.fi/kuluttajat/tv/nakyvyysalueet/kanavanumerot_ja_taajuudet

[Suomussalmi_Ala-Vuokki]
	DELIVERY_SYSTEM = DVBT
	FREQUENCY = 698000000
	BANDWIDTH_HZ = 8000000

[Suomussalmi_Ala-Vuokki]
	DELIVERY_SYSTEM = DVBT
	FREQUENCY = 786000000
	BANDWIDTH_HZ = 8000000
</pre></div>