MapleAssign
assign a value to a Maple variable in external code
MapleAssignIndexed
assign to an indexable object element in external code
Calling Sequence
Parameters
Description
Examples
MapleAssign(kv, lhs, rhs)
MapleAssignIndexed(kv, lhs, n, ind, rhs)
kv
-
kernel handle returned by StartMaple
lhs
assignable Maple object
rhs
Maple object
n
length of ind
ind
index array
These functions are part of the OpenMaple interface to Microsoft Visual Basic.
The MapleAssign function attempts to assign lhs := rhs.
The MapleAssignIndexed function attempts to assign lhs[ind] := rhs. The index, ind is an array of 32-bit integers. To reference lhs[1,2], set ind[0] = 1, and ind[1] = 2.
Sub TestMapleAssign(ByVal kv As Long)
Dim a, b, r, val As Long
Dim index(1) As Long
' assign to Maple variables a and b
a = ToMapleName(kv, "a", True)
MapleAssign kv, a, ToMapleFloat(kv, 3.14)
b = ToMapleName(kv, "b", True)
MapleAssign kv, b, ToMapleFloat(kv, 2.71)
' compute a*b
val = EvalMapleStatement(kv, "a*b;")
'save the result in a table called my_results
r = ToMapleName(kv, "my_results", True)
index(0) = 1
index(1) = 1
MapleAssignIndexed kv, r, 2, index(0), val
MapleALGEB_Printf1 kv, "%a", val
MapleALGEB_Printf1 kv, "%a", MapleSelectIndexed(kv, r, 2, index(0))
EvalMapleStatement kv, "eval(my_results);"
End Sub
See Also
OpenMaple
OpenMaple/VB/API
OpenMaple/VB/Examples
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