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SignedPower
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简述
符号次方。特殊当x=0时,N<0,返回Nan;N=0, 返回1;N>0, 返回0。
定义
SignedPower(Exp:String;N:Integer):Real
参数
名称
类型
说明
Exp
String
字符串。函数表达式
N
Integer
实数。次方
返回
Real
实数。符号次方。
算法
SignedPower(x,n)=sign(x)*(abs(x)^n)
范例
SetSysParam(pn_stock(),"SH600585");
SetSysParam(pn_date(),20231030T);
return SignedPower(@close(),3);
//结果:14402.12
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