forked from johannesgerer/jburkardt-cpp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathweekday.html
261 lines (230 loc) · 6.74 KB
/
weekday.html
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
<html>
<head>
<title>
WEEKDAY - Determine the Day of the Week
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
WEEKDAY <br> Determine the Day of the Week
</h1>
<hr>
<p>
<b>WEEKDAY</b>
is a C++ library which
can determine the day of the week corresponding to a given date;
for instance, the battle of Hastings, on 14 October 1066 (Julian Calendar!),
was a Saturday.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>WEEKDAY</b> is available in
<a href = "../../c_src/weekday/weekday.html">a C version</a> and
<a href = "../../cpp_src/weekday/weekday.html">a C++ version</a> and
<a href = "../../f77_src/weekday/weekday.html">a FORTRAN77 version</a> and
<a href = "../../f_src/weekday/weekday.html">a FORTRAN90 version</a> and
<a href = "../../m_src/weekday/weekday.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../f_src/calendar_nyt/calendar_nyt.html">
CALENDAR_NYT</a>,
a FORTRAN90 library which
shows the correspondence between dates and the New York Times volume and
issue number;
</p>
<p>
<a href = "../../cpp_src/calendar_rd/calendar_rd.html">
CALENDAR_RD</a>,
a C++ program which
computes the representation of a given date in a
number of calendrical systems,
by Edward Reingold, Nachum Dershowitz
</p>
<p>
<a href = "../../cpp_src/calpak/calpak.html">
CALPAK</a>,
a C++ library which
makes various calendar calculations;
</p>
<p>
<a href = "../../datasets/dates/dates.html">
DATES</a>,
a dataset directory which
contains lists of dates in various calendar systems.
</p>
<p>
<a href = "../../cpp_src/doomsday/doomsday.html">
DOOMSDAY</a>,
a C++ library which
is given the year, month and day of a date, and uses
John Conway's doomsday algorithm to determine the corresponding day of the week.
</p>
<p>
<a href = "../../cpp_src/test_values/test_values.html">
TEST_VALUES</a>,
a C++ library which
supplies test values of various mathematical functions.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Lewis Carroll (Charles Dodgson),<br>
To Find the Day of the Week for Any Given Date,<br>
Nature, 31 March 1887.
</li>
<li>
Gary Meisters,<br>
Lewis Carroll's Day-of-the-Week Algorithm,<br>
Math Horizons,<br>
November 2002, pages 24-25.
</li>
<li>
Edward Reingold, Nachum Dershowitz,<br>
Calendrical Calculations: The Millennium Edition,<br>
Cambridge University Press, 2001,<br>
ISBN: 0-521-77752-6,<br>
LC: CE12.R45.
</li>
<li>
Edward Richards,<br>
Mapping Time, The Calendar and Its History,<br>
Oxford, 1999,<br>
ISBN: 0-19-850413-6,<br>
LC: CE11.R5.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "weekday.cpp">weekday.cpp</a>, the source code.
</li>
<li>
<a href = "weekday.hpp">weekday.hpp</a>, the include file.
</li>
<li>
<a href = "weekday.sh">weekday.sh</a>,
commands to compile the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "weekday_prb.cpp">weekday_prb.cpp</a>,
a sample calling program.
</li>
<li>
<a href = "weekday_prb.sh">weekday_prb.sh</a>,
commands to compile and run the sample program.
</li>
<li>
<a href = "weekday_prb_output.txt">weekday_prb_output.txt</a>,
the output file.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>DIGIT_TO_CH</b> returns the base 10 digit character corresponding to a digit.
</li>
<li>
<b>I4_MAX</b> returns the maximum of two I4's.
</li>
<li>
<b>I4_MIN</b> returns the minimum of two I4's.
</li>
<li>
<b>I4_MODP</b> returns the nonnegative remainder of I4 division.
</li>
<li>
<b>I4_WRAP</b> forces an I4 to lie between given limits by wrapping.
</li>
<li>
<b>JED_TO_WEEKDAY</b> computes the day of the week from a JED.
</li>
<li>
<b>R8_ABS</b> returns the absolute value of an R8.
</li>
<li>
<b>R8_MOD</b> returns the remainder of R8 division.
</li>
<li>
<b>R8_NINT</b> returns the nearest integer to an R8.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
<li>
<b>WEEKDAY_TO_NAME_COMMON</b> returns the name of a Common weekday.
</li>
<li>
<b>WEEKDAY_VALUES</b> returns the day of the week for various dates.
</li>
<li>
<b>Y_COMMON_TO_ASTRONOMICAL</b> converts a Common year to an Astronomical year.
</li>
<li>
<b>YMD_TO_S_COMMON</b> writes a Common YMD date into a string.
</li>
<li>
<b>YMD_TO_WEEKDAY_COMMON</b> returns the weekday of a Common YMD date.
</li>
<li>
<b>YMD_TO_WEEKDAY_ENGLISH</b> returns the weekday of an English YMD date.
</li>
<li>
<b>YMDF_COMPARE</b> compares two YMDF dates.
</li>
<li>
<b>YMDF_TO_JED_COMMON</b> converts a Common YMDF date to a JED.
</li>
<li>
<b>YMDF_TO_JED_ENGLISH</b> converts an English YMDF date to a JED.
</li>
<li>
<b>YMDF_TO_JED_GREGORIAN</b> converts a Gregorian YMDF date to a JED.
</li>
<li>
<b>YMDF_TO_JED_JULIAN</b> converts a Julian YMDF date to a JED.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source codes</a>.
</p>
<hr>
<i>
Last revised on 25 March 2010.
</i>
<!-- John Burkardt -->
</body>
<!-- Initial HTML skeleton created by HTMLINDEX. -->
</html>