Lua数学库

妖狐艹你老母 2022-09-26 03:07 223阅读 0赞

Lua5.1中数学库的所有函数如下表：  
  
math.pi 为圆周率常量 = 3.14159265358979323846

<table style="margin:0px; padding:0pt 5.4pt; border-collapse:collapse; border-spacing:0px; border:1px solid silver; word-break:break-word; color:rgb(0,0,0); font-family:Verdana,Arial,Helvetica,sans-serif; font-size:13.92px; line-height:20.88px"> 
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 <td style="margin:0px; padding:0pt 5.4pt; border:0.5pt solid rgb(0,0,0); border-collapse:collapse; width:73.9pt"> abs </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:0.5pt 0.5pt 0.5pt 1px; border-style:solid; border-color:rgb(0,0,0) rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 取绝对值 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:0.5pt 0.5pt 0.5pt 1px; border-style:solid; border-color:rgb(0,0,0) rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.abs(-15) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:0.5pt 0.5pt 0.5pt 1px; border-style:solid; border-color:rgb(0,0,0) rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 15 </td> 
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 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> acos </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 反余弦函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.acos(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 1.04719755 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> asin </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 反正弦函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.asin(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.52359877 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> atan2 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> x&nbsp;/&nbsp;y的反正切值 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.atan2(90.0,&nbsp;45.0) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 1.10714871 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> atan </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 反正切函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.atan(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.463647609 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> ceil </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 不小于x的最大整数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.ceil(5.8) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 6 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> cosh </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 双曲线余弦函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.cosh(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 1.276259652 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> cos </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 余弦函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.cos(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.87758256 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> deg </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 弧度转角度 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.deg(math.pi) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 180 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> exp </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 计算以e为底x次方值 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.exp(2) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 2.718281828 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> floor </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 不大于x的最大整数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.floor(5.6) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 5 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> fmod&nbsp;（mod） </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 取模运算 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.mod(14,&nbsp;5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 4 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> frexp </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 把双精度数val分解为数字部分（尾数）和以2为底的指数n，即val=x*2n </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.frexp(10.0) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.625&nbsp;&nbsp;&nbsp;&nbsp;4 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> ldexp </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 计算value&nbsp;*&nbsp;2的n次方 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.ldexp(10.0,&nbsp;3) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 80&nbsp;=&nbsp;10&nbsp;*&nbsp;(2&nbsp;^3) </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> log10 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 计算以10为基数的对数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.log10(100) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 2 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> log </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 计算一个数字的自然对数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.log(2.71) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.9969 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> max </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 取得参数中最大值 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.max(2.71,&nbsp;100,&nbsp;-98,&nbsp;23) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 100 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> min </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 取得参数中最小值 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.min(2.71,&nbsp;100,&nbsp;-98,&nbsp;23) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> -98 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> modf </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 把数分为整数和小数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.modf(15.98) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 15&nbsp;&nbsp;&nbsp;&nbsp;98 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> pow </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 得到x的y次方 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.pow(2,&nbsp;5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 32 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> rad </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 角度转弧度 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.rad(180) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 3.14159265358 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> random </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 获取随机数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.random(1,&nbsp;100) math.random(100) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 获取1-100的随机数 </td> 
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 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> randomseed </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 设置随机数种子 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.randomseed(os.time()) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 在使用math.random函数之前必须使用此函数设置随机数种子 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> sinh </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 双曲线正弦函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.sinh(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.5210953 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> sin </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 正弦函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.sin(math.rad(30)) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.5 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> sqrt </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 开平方函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.sqrt(16) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 4 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> tanh </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 双曲线正切函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.tanh(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.46211715 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px; height:15.6pt"> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0); border-collapse:collapse; width:73.9pt"> tan </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:95.5pt"> 正切函数 </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:151.45pt"> math.tan(0.5) </td> 
 <td style="margin:0px; padding:0pt 5.4pt; border-width:1px 0.5pt 0.5pt 1px; border-style:solid; border-color:silver rgb(0,0,0) rgb(0,0,0) silver; border-collapse:collapse; width:111.45pt"> 0.5463024 
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