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【NormalSCDensity】
- Inputs: PriceValue(Numeric);
- Variables: var0(0), var1(0), var2(0), var3(0);
- var2 = 1 / (1 + .2316419 * AbsValue(PriceValue));
- var3 = .3989423 * Power(2.71828183, -(PriceValue * PriceValue) / 2);
- var1 = 1 - var3 * ((1.33027443 * Power(var2, 5)) - (1.821256 * Power(var2, 4)) + (1.78147794 * Power(var2, 3)) - (.3565638 * Power(var2, 2)) + (.31938153 * var2));
- If PriceValue > 0 Then
- var0 = var1
- Else
- var0 = 1 - var1;
- NormalSCDensity = var0;
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