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3 | <p> |
3 | <p> |
4 | $x is a real number, which can be replaced by an expression, to allow |
4 | $x is a real number, which can be replaced by an expression, to allow |
5 | composite functions. |
5 | composite functions. |
6 | <p> |
6 | <p> |
7 | <center><table border=2 cellspacing=1 cellpadding=3 bgcolor= |
7 | <center><table border=2 cellspacing=1 cellpadding=3 bgcolor="#d0e0c0"> |
8 | <tr><th>function<th>description<th>how to type |
8 | <tr><th>function<th>description<th>how to type |
9 | <tr> |
9 | <tr> |
10 | <tr><td>$m_pi |
10 | <tr><td>$m_pi |
11 | <td>constant known to all<td> |
11 | <td>constant known to all<td> |
12 | <tt>pi</tt> or <tt>Pi</tt> or <tt>PI |
12 | <tt>pi</tt> or <tt>Pi</tt> or <tt>PI |