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9    <title>leapyr.pro (SAXO Documentation)</title>
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74<a href="julday.html">&lt;&lt;prev file</a> | <a href="monthname.html">next file &gt;&gt;</a>&nbsp;&nbsp;&nbsp;&nbsp;<a href="leapyr.html" target="_TOP">view single page</a> | <a href="./../index.html" target="_TOP">view frames</a>&nbsp;&nbsp;&nbsp;&nbsp;summary: fields | routine&nbsp;&nbsp;&nbsp;&nbsp;details: <a href="#routine_details">routine</a>
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81      <h1 class="directory"><a href="directory-overview.html">Calendar/</a></h1>
82      <h2 class="pro_file">leapyr.pro</h2>
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85        <dl>
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89      <div id="file_comments">
90 determine whether the input year is a leap year or not
91 Very useful for finding number of days in a year.
92 eg. NUM_DAYS_IN_YR = 365 + leapyr(year)
93</div>
94
95     
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101     
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103      <div id="routine_details">
104       
105
106        <div class="routine_details" id="_leapyr">
107
108          <h2><a class="top" href="#container">top</a>leapyr <span class="categories">
109 Calendar
110</span></h2>
111       
112          <p class="header">
113            <span class="result">result = </span>leapyr(<span class="result"><a href="#_leapyr_param_year">year</a></span>)</p>
114       
115          <div class="comments">
116</div>
117
118          <h3>Return value</h3><div class="preformat">
119 0 then not a leap year, 1 then year is a leap year
120 with the same number of elements than year.
121</div>
122
123         
124            <h3>Parameters</h3>
125       
126           
127            <h4 id="_leapyr_param_year">year&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
128              <span class="attr">in</span>
129             
130             
131              <span class="attr">required</span>
132             
133              <span class="attr">type:</span> <span class="value"> scalar or array</span>
134             
135             
136            </h4>
137       
138          <div class="comments">
139 year to be tested as a leap year.
140</div>
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147          <h3>Examples</h3><div class="preformat">
148   IDL> result = leapyr(2000)
149</div>
150          <h3>Version history</h3>
151         
152          <h4>Version</h4><div class="preformat">
153 $Id: leapyr.pro 371 2008-08-07 09:32:02Z pinsard $
154</div>
155          <h4>History</h4><div class="preformat">
156
157 Originally Written by: Trevor Harris, Physics Dept., University of Adelaide,
15820/09/88
159
160 November 2004: correction for century years... S. Masson;
161
162 Every year divisible by 4 is a leap year.
163 But every year divisible by 100 is NOT a leap year
164 Unless the year is also divisible by 400, then it is still a
165 leap year.
166 This means that year 1800, 1900, 2100, 2200, 2300 and 2500 are
167 NOT leap years, while year 2000 and 2400 are leap years.
168 + supress the automatic change 89 -> 1989
169
170 June 2005 update for new commons, Sebastien Masson.
171</div>
172         
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174         
175         
176         
177         
178         
179       
180          <h3>Other attributes</h3>
181         
182         
183          <h4>Uses routines</h4><div class="preformat">
184 <a href="..//Commons/cm_4cal.html">cm_4cal</a>
185</div>
186         
187         
188         
189       
190          <h3>Statistics</h3>
191          <table class="statistics">
192            <tr><td>McCabe cyclic</td><td>           4</td></tr>
193            <tr><td>McCabe essential</td><td>           1</td></tr>
194            <tr><td>McCabe modular design</td><td>           1</td></tr>
195          </table>
196         
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