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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2071 | zjchen | 1 | !set x=<i>x</i> |
| 2 | |||
| 3 | <p> |
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| 4 | $x 是实数, 它可用表达式替换变成符合函数. |
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| 5 | <p> |
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| 6 | $table_header |
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| 7 | $table_tr |
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| 8 | $table_tr<th>函数<th>描述<th>如何输入 |
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| 9 | $table_tr<td>$m_pi |
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| 10 | <td>圆周率<td> |
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| 11 | <tt>pi</tt> 或 <tt>Pi</tt> 或 <tt>PI</tt> |
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| 12 | $table_tr<td><i>e</i><td>自然对数的底<td> |
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| 13 | <tt>e</tt> 或 <tt>E</tt> |
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| 14 | |||
| 15 | $table_tr<td>|$x|<td>$x 的绝对值<td><tt>abs(x) |
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| 16 | $table_tr<td>sign($x)<td>$x 的符号: |
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| 17228 | bpr | 17 | <br> =-1 若 $x<0<br> =0 若 $x=0<br> =1 若 $x>0 |
| 2071 | zjchen | 18 | <td><tt>sign(x) |
| 19 | $table_tr<td> |
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| 20 | !instex $$ \sqrt x $$ |
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| 21 | <td>$x 的平方根 |
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| 22 | <td><tt>sqrt(x)</tt> 或 <tt>x^(1/2)</tt> |
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| 23 | $table_tr<td>?<td>最接近 $x 的整数<td><tt>rint(x)</tt> |
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| 24 | $table_tr<td>?<td>l<=$x 的最大整数<td><tt>floor(x)</tt> |
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| 25 | $table_tr<td>?<td>>=$x 的最小整数<td><tt>ceil(x)</tt> |
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| 26 | $table_tr |
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| 27 | $table_tr<td><i>e<sup>x</sup><td>指数<td> |
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| 28 | <tt>exp(x)</tt> 或 <tt>e^x</tt> 或 <tt>E^x</tt> |
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| 29 | $table_tr<td>ln($x)<td>自然对数<td><tt>log(x)</tt> 或 <tt>ln(x)</tt> |
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| 30 | $table_tr |
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| 31 | $table_tr<td>sin($x)<td>正弦<td><tt>sin(x) |
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| 32 | $table_tr<td>cos($x)<td>余弦<td><tt>cos(x) |
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| 33 | $table_tr<td>tg($x)<td>正切<td><tt>tan(x)</tt> 或 <tt>tg(x)</tt> |
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| 34 | $table_tr<td>ctg($x)<td>余切<td><tt>cotan(x)</tt> 或 <tt>ctg(x)</tt> |
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| 17228 | bpr | 35 | </tt> <br> 或 <tt>cot(x) |
| 2071 | zjchen | 36 | $table_tr<td>arcsin($x)<td>反正弦<td><tt>asin(x)</tt> 或 |
| 37 | <tt>arcsin(x)</tt> |
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| 38 | $table_tr<td>arccos($x)<td>反余弦<td><tt>acos(x)</tt> 或 |
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| 39 | <tt>arccos(x)</tt> |
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| 40 | $table_tr<td>arctg($x)<td>反正切<td><tt>atan(x)</tt> 或 |
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| 17228 | bpr | 41 | <tt>arctan(x)</tt> <br>或 <tt>arctg(x)</tt> |
| 2071 | zjchen | 42 | $table_tr |
| 43 | $table_tr<td>sh($x)<td>抛物正弦<td><tt>sh(x)</tt> 或 <tt>sinh(x)</tt> |
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| 44 | $table_tr<td>ch($x)<td>抛物余弦<td><tt>ch(x)</tt> 或 <tt>cosh(x)</tt> |
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| 45 | $table_tr<td>th($x)<td>抛物正切<td><tt>th(x)</tt> 或 <tt>tanh(x)</tt> |
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| 46 | $table_tr<td>Argsh($x)<td>反抛物正弦<td><tt>asinh(x)</tt> 或 <tt>argsh(x)</tt> |
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| 17228 | bpr | 47 | <br>或 <tt>Argsh(x)</tt> |
| 2071 | zjchen | 48 | $table_tr<td>Argch($x)<td>反抛物余弦<td><tt>acosh(x)</tt> 或 <tt>argch(x)</tt> |
| 17228 | bpr | 49 | <br>或 <tt>Argch(x)</tt> |
| 2071 | zjchen | 50 | $table_tr<td>Argth($x)<td>反抛物正切<td><tt>atanh(x)</tt> 或 <tt>argth(x)</tt> |
| 17228 | bpr | 51 | <br>或 <tt>Argth(x)</tt> |
| 2071 | zjchen | 52 | $table_tr<td>max(x,y)<td>x 与 y 中的大者<td><tt>max(x,y)</tt> |
| 53 | $table_tr<td>min(x,y)<td>x 与 y 中的小者<td><tt>min(x,y) |
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| 54 | $table_tr<td>gcd(x,y)<td>最大公因数<td><tt>max(x,y) |
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| 55 | $table_tr<td>lcm(x,y)<td>最小公倍数<td><tt>min(x,y) |
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| 56 | </table></center> |
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| 57 | !exit |
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| 58 | |||
| 59 | !! Add the following: |
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| 60 | <ul> |
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| 61 | <li>lg(x): 常用对数 10</LI> |
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| 62 | <li>j0(x), j1(x), y0(x), y1(x): Bessel 函数</LI> |
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| 63 | </ul> |
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| 64 |