A3. 実数演算

関数
Function	D1num (I As Long, Optional Info As Long) As Double
	IEEE 754 の特殊な数値 (倍精度)
Function	IsFinite (X As Double) As Boolean
	有限値の判定
Function	IsInf (X As Double) As Boolean
	無限大の判定
Function	IsNan (X As Double) As Boolean
	NaN(非数)の判定
Function	IsNormal (X As Double) As Boolean
	正規化数の判定
Function	Signbit (X As Double) As Boolean
	数値の符号の判定
Sub	D1num_sub (Ret As Double, I As Long, Optional Info As Long)
	IEEE 754 の特殊な数値 (倍精度) (サブルーチン版)
Sub	IsFinite_sub (Ret As Boolean, X As Double)
	有限値の判定 (サブルーチン版)
Sub	IsInf_sub (Ret As Boolean, X As Double)
	無限大の判定 (サブルーチン版)
Sub	IsNan_sub (Ret As Boolean, X As Double)
	NaN(非数)の判定 (サブルーチン版)
Sub	IsNormal_sub (Ret As Boolean, X As Double)
	正規化数の判定 (サブルーチン版)
Sub	Signbit_sub (Ret As Boolean, X As Double)
	数値の符号の判定 (サブルーチン版)

詳解

A3. 実数演算 プログラムを表示しています.