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MapleSelectIndexed - select from a table, list, or rtable in external code
MapleSelectImaginaryPart - select the imaginary part of a complex-valued expression in external code
MapleSelectRealPart - select the real part of a complex-valued expression in external code
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Calling Sequence
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MapleSelectIndexed(kv, s, n, ind)
MapleSelectImaginaryPart(kv, s)
MapleSelectRealPart(kv, s)
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Parameters
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kv
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kernel handle returned by StartMaple
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s
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an indexable Maple object
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n
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length of ind
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ind
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32-bit integer index array
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Description
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These functions are part of the OpenMaple interface to Microsoft Visual Basic.
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The MapleSelectIndexed function retrieves the element s[ind], where s is a list, set, table, or rtable object. The index is an integer array. To reference s[1,2], set ind(0) = 1, and ind(1) = 2;.
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The MapleSelectImaginaryPart function returns the imaginary part of s. The MapleSelectRealPart function returns the real part of s. These commands are equivalent to the Maple Im and Re commands.
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Examples
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Sub TestSelect(ByVal kv As Long)
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Dim s, r As Long
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Dim ind(2) As Long
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s = EvalMapleStatement(kv, "Matrix([[red,yellow],[green,blue]]);")
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ind(0) = 1
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ind(1) = 2
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r = MapleSelectIndexed(kv, s, 2, ind(0))
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MapleALGEB_Printf1 kv, "r = %a", r
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s = EvalMapleStatement(kv, "1.1+2.2*I;")
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r = MapleSelectRealPart(kv, s)
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MapleALGEB_Printf1 kv, "re = %a", r
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End Sub
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