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Function LargeProduct(A As Double, B As Double) As String
Dim Result As Variant
Result = CDec(A) * CDec(B)
LargeProduct = Str(Result)
End Function
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Function PrdEx(A As Variant, B As Variant) As Variant
PrdEx = Format(CDec(A) * CDec(B), "#,###")
End Function
' å²ãç®
Function DivEx(A As Variant, B As Variant) As Variant
DivEx = Format(CDec(A) / CDec(B), "#,###")
End Function
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Function AddEx(A As Variant, B As Variant) As Variant
AddEx = Format(CDec(A) + CDec(B), "#,###")
End Function
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Function SbtEx(A As Variant, B As Variant) As Variant
SbtEx = Format(CDec(A) - CDec(B), "#,###")
End Function
--
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Num(15) As Long
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Const Part As Integer = 5 'ãããã¯æ°
Const Fig As Integer = 14 'æ¡æ°ïŒãããã¯
Private Type HugeInt
Num(Part) As Variant
End Type
Private Sub SetHugeInt(A As HugeInt, NumStr As String)
Dim I As Integer
NumStr = Right(String(Part * Fig, "0") & NumStr, Part * Fig)
For I = Part To 1 Step -1
A.Num(Part - I + 1) = CDec(Mid(NumStr, Fig * (I - 1) + 1, Fig))
Next I
End Sub
Private Function Mul(A As HugeInt, B As HugeInt) As HugeInt
Dim I As Integer, J As Integer, K As Integer
On Error Resume Next
For I = 1 To Part
For J = 1 To Part
K = I + J - 1
Mul.Num(K) = Mul.Num(K) + A.Num(I) * B.Num(J)
Mul.Num(K + 1) = Mul.Num(K + 1) + Int(Mul.Num(K) / 10 ^ Fig)
Mul.Num(K) = Mul.Num(K) - Int(Mul.Num(K) / 10 ^ Fig) * 10 ^ Fig
Next J
Next I
On Error GoTo 0
End Function
Sub Test()
Dim A As HugeInt, B As HugeInt
Dim I As Integer
Dim Result As String
SetHugeInt A, "12345678901234567890123456489012345"
SetHugeInt B, "12345678901234567890123456489012345"
With Mul(A, B)
For I = Part To 1 Step -1
Result = Result & Format(.Num(I), String(Fig, "0"))
Next I
End With
While Mid(Result, 1, 1) = "0"
Result = Mid(Result, 2)
Wend
Debug.Print Result
End Sub
--
Miyahn?ç¬å¹ŽããŸã
HQF0...@nifty.ne.jp
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nakashima michio
VB6 Faq & Untique
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http://member.nifty.ne.jp/salv/hp-old/03pc/qvb/03vbpg006.htm
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Function xSum(ParamArray a())
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Dim r, c, Tmp As ShisuuSet
For Each r In a
For Each c In r
Tmp = sAdd(Tmp, JtoS(c.Text))
Next
Next
xSum = StoJ(Tmp)
End Function
Function xAdd(a, b)
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Dim na As ShisuuSet, nb As ShisuuSet
na = JtoS(a.Text): nb = JtoS(b.Text)
xAdd = StoJ(sAdd(na, nb))
End Function
Function xMlt(a, b)
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Dim na As ShisuuSet, nb As ShisuuSet
na = JtoS(a.Text): nb = JtoS(b.Text)
xMlt = StoJ(sMlt(na, nb))
End Function
'-------------------------------
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nakashima
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